American Mineralogist Crystal Structure Database

76 matching records for this search.

Enstatite
Download hom/enstatite.pdf
Domeneghetti M C, Molin G M, Stimpfl M, Tribaudino M
Download am/vol80/AM80_923.pdf
American Mineralogist 80 (1995) 923-929
Orthopyroxene from the Serra de Mage meteorite: Structure refinement and
estimation of C2/c pyroxene contributions to apparent Pbca diffraction
violations
Sample: OPX SDM N.13, natural
_database_code_amcsd 0001755
18.316 8.907 5.218 90 90 90 Pbca
atom      x      y       z  occ B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
Sia  .27149 .34060  .05180      .00044 .00135 .00294 -.00013 -.00001 -.00008
Sib  .47403 .33660  .79535      .00047 .00154 .00219  .00014  .00009  .00001
Mg1  .37540 .65459  .87426 .896 .00056 .00177 .00263  .00000 -.00015  .00015
Fe1  .37540 .65459  .87426 .104 .00056 .00177 .00263  .00000 -.00015  .00015
Fe2  .37797 .48308  .36794 .703 .00062 .00245 .00259 -.00012 -.00048 -.00008
Mg2  .37797 .48308  .36794 .254 .00062 .00245 .00259 -.00012 -.00048 -.00008
Ca2  .37797 .48308  .36794 .043 .00062 .00245 .00259 -.00012 -.00048 -.00008
O1a  .18355 .33731  .04361      .00046 .00239 .00322 -.00010  .00033  .00016
O1b  .56266 .33632  .79552      .00042 .00255 .00364  .00011 -.00036  .00031
O2a  .31117 .50053  .05332      .00069 .00192 .00466 -.00020 -.00058  .00004
O2b  .43402 .48555  .69789      .00070 .00249 .00455  .00032 -.00019  .00076
O3a  .30233 .23184 -.17642      .00060 .00273 .00635  .00001  .00036 -.00239
O3b  .44739 .20280  .59356      .00062 .00280 .00649 -.00003 -.00014 -.00234
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Enstatite
Download hom/enstatite.pdf
Domeneghetti M C, Molin G M, Stimpfl M, Tribaudino M
Download am/vol80/AM80_923.pdf
American Mineralogist 80 (1995) 923-929
Orthopyroxene from the Serra de Mage meteorite: Structure refinement and
estimation of C2/c pyroxene contributions to apparent Pbca diffraction
violations
Sample: OPX SDM N.7, heated
_database_code_amcsd 0001756
18.320 8.917 5.219 90 90 90 Pbca
atom      x      y       z  occ B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
Sia  .27178 .34044  .05067      .00035 .00100 .00544 -.00020 -.00014  .00006
Sib  .47383 .33640  .79521      .00044 .00132 .00450  .00021  .00028  .00020
Fe1  .37558 .65406  .87255 .232 .00044 .00145 .00435 -.00003  .00008  .00008
Mg1  .37558 .65406  .87255 .768 .00044 .00145 .00435 -.00003  .00008  .00008
Fe2  .37776 .48319  .36681 .570 .00057 .00271 .00439 -.00010 -.00033 -.00006
Mg2  .37776 .48319  .36681 .387 .00057 .00271 .00439 -.00010 -.00033 -.00006
Ca2  .37776 .48319  .36681 .043 .00057 .00271 .00439 -.00010 -.00033 -.00006
O1a  .18414 .33775  .03730      .00031 .00196 .00475 -.00008 -.00009  .00090
O1b  .56235 .33755  .79219      .00021 .00280 .00449  .00011 -.00009  .00101
O2a  .31098 .49976  .04844      .00038 .00262 .00658 -.00036 -.00045  .00053
O2b  .43401 .48420  .69768      .00054 .00341 .00609  .00020 -.00002  .00020
O3a  .30222 .23043 -.17242      .00060 .00300 .00629 -.00038  .00063 -.00173
O3b  .44755 .20209  .59672      .00067 .00262 .00584  .00005 -.00002 -.00273
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Feldspar
 
Benna P, Tribaudino M, Bruno E
Download am/vol81/AM81_1337.pdf
American Mineralogist 81 (1996) 1337-1343
The structure of ordered and disordered lead feldspar (PbAl2Si2O8)
Sample: disordered
_database_code_amcsd 0001839
8.428 13.054 7.174 90 115.32 90 C2/m
atom      x     y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb    .2749 .0213 .1406  .5   .022   .052   .043   .016   .008   .004
Si1   .0038 .1793 .2258  .5   .018   .013   .016   .005   .009  -.001
Al1   .0038 .1793 .2258  .5   .018   .013   .016   .005   .009  -.001
Si2   .6932 .1170 .3455  .5   .010   .006   .008   .000   .003   .000
Al2   .6932 .1170 .3455  .5   .010   .006   .008   .000   .003   .000
OA(l)     0 .1353     0       .027   .019   .015   .000   .007   .000
OA(2) .6033     0 .2956       .019   .012   .031   .000   .010   .000
OB    .8175 .1311 .2214       .028   .025   .032   .000   .017   .001
OC    .0181 .3066 .2539       .025   .019   .029  -.006   .014   .002
OD    .1905 .1249 .4010       .025   .028   .016   .001   .001  -.001
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Feldspar
 
Benna P, Tribaudino M, Bruno E
Download am/vol81/AM81_1337.pdf
American Mineralogist 81 (1996) 1337-1343
The structure of ordered and disordered lead feldspar (PbAl2Si2O8)
Sample: ordered
_database_code_amcsd 0001840
8.388 13.067 14.327 90 115.19 90 I2/c
atom       x      y      z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb     .2715 -.0098  .0731  .5   .009   .030   .021  -.002   .005  -.001
Si1(0) .0077  .1755  .1091       .007   .008   .006  -.002   .003  -.001
Al1(z) .0021  .1797  .6163       .006   .007   .007  -.002   .004  -.000
Al2(0) .6945  .1202  .1712       .004   .007   .008   .001   .003   .001
Si2(z) .6867  .1137  .6748       .005   .006   .009  -.001   .003  -.001
OA(l)  .0062  .1336  .0006       .016   .015   .007  -.002   .005   .000
OA(2)  .5956 -.0008  .1471       .007   .004   .017   .002   .004   .002
OB(O)  .8280  .1295  .1055       .011   .014   .023  -.004   .012  -.001
OB(z)  .8154  .1300  .6191       .009   .019   .022  -.002   .013   .001
OC(O)  .0178  .2979  .1217       .013   .010   .018  -.005   .008  -.002
OC(Z)  .0182  .3109  .6328       .011   .007   .018  -.003   .005  -.003
OD(O)  .1833  .1230  .1957       .015   .021   .010  -.000   .000   .002
OD(z)  .2006  .1202  .7010       .009   .014   .012   .001   .001   .001
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Feldspar
 
Tribaudino M, Benna P, Bruno E
Download am/vol83/AM83_159.pdf
American Mineralogist 83 (1998) 159-166
Structural variations induced by thermal treatment in lead feldspar (PbAl2Si2O8)
Sample: PbF_L1h, single Pb site
_database_code_amcsd 0001953
8.395 13.081 14.343 90 115.27 90 I2/c
atom      x      y      z  occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb    .2716 -.0096  .0728        .017   .044   .022  -.003   .008  -.002
Al1o  .0078  .1760  .1091 .075   .014   .014   .006  -.003   .006  -.001
Si1o  .0078  .1760  .1091 .925   .014   .014   .006  -.003   .006  -.001
Al1z  .0022  .1797  .6164 .925   .013   .013   .009  -.003   .008  -.001
Si1z  .0022  .1797  .6164 .075   .013   .013   .009  -.003   .008  -.001
Al2o  .6948  .1201  .1711 .925   .013   .010   .008   .000   .007   .000
Si2o  .6948  .1201  .1711 .075   .013   .010   .008   .000   .007   .000
Al2z  .6873  .1140  .6749 .075   .012   .011   .009   .001   .007   .001
Si2z  .6873  .1140  .6749 .925   .012   .011   .009   .001   .007   .001
OA(1) .0052  .1342  .0009        .027   .021   .009  -.002   .012  -.002
OA(2) .5944 -.0005  .1459        .015   .011   .022  -.002   .009   .000
OB(o) .8256  .1289  .1060        .014   .019   .023   .004   .012  -.001
OB(Z) .8137  .1301  .6183        .014   .022   .031  -.001   .017   .003
OC(O) .0189  .2987  .1219        .021   .017   .019  -.002   .010  -.002
OC(Z) .0190  .3108  .6323        .018   .018   .020  -.003   .010   .004
OD(o) .1845  .1233  .1957        .021   .028   .011   .003   .008   .005
OD(Z) .2021  .1210  .7011        .018   .018   .015   .004   .004   .004
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Feldspar
 
Tribaudino M, Benna P, Bruno E
Download am/vol83/AM83_159.pdf
American Mineralogist 83 (1998) 159-166
Structural variations induced by thermal treatment in lead feldspar (PbAl2Si2O8)
Sample: PbF_L1h, split Pb site
_database_code_amcsd 0001954
8.395 13.081 14.343 90 115.27 90 I2/c
atom      x      y      z  occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb'   .2699 -.0111  .0736   .6   .013   .027   .015  -.007   .004   .000
Pb"   .2758 -.0029  .0704   .4   .026   .119   .044   .009   .022  -.003
Al1o  .0078  .1760  .1091 .075   .014   .014   .006  -.003   .006  -.001
Si1o  .0078  .1760  .1091 .925   .014   .014   .006  -.003   .006  -.001
Al1z  .0022  .1797  .6164 .925   .013   .013   .009  -.003   .008  -.001
Si1z  .0022  .1797  .6164 .075   .013   .013   .009  -.003   .008  -.001
Al2o  .6948  .1201  .1711 .925   .013   .010   .008   .000   .007   .000
Si2o  .6948  .1201  .1711 .075   .013   .010   .008   .000   .007   .000
Al2z  .6873  .1140  .6749 .075   .012   .011   .009   .001   .007   .001
Si2z  .6873  .1140  .6749 .925   .012   .011   .009   .001   .007   .001
OA(1) .0052  .1342  .0009        .027   .021   .009  -.002   .012  -.002
OA(2) .5944 -.0005  .1459        .015   .011   .022  -.002   .009   .000
OB(o) .8256  .1289  .1060        .014   .019   .023   .004   .012  -.001
OB(Z) .8137  .1301  .6183        .014   .022   .031  -.001   .017   .003
OC(O) .0189  .2987  .1219        .021   .017   .019  -.002   .010  -.002
OC(Z) .0190  .3108  .6323        .018   .018   .020  -.003   .010   .004
OD(o) .1845  .1233  .1957        .021   .028   .011   .003   .008   .005
OD(Z) .2021  .1210  .7011        .018   .018   .015   .004   .004   .004
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Feldspar
 
Tribaudino M, Benna P, Bruno E
Download am/vol83/AM83_159.pdf
American Mineralogist 83 (1998) 159-166
Structural variations induced by thermal treatment in lead feldspar (PbAl2Si2O8)
Sample: PbF_L16h, single Pb site
_database_code_amcsd 0001955
8.399 13.061 14.334 90 115.28 90 I2/c
atom      x      y      z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb    .2723 -.0079  .0719       .017   .071   .028  -.010   .007  -.003
Al1o  .0072  .1773  .1097 .14   .011   .013   .008  -.002   .004  -.002
Si1o  .0072  .1773  .1097 .86   .011   .013   .008  -.002   .004  -.002
Al1z  .0025  .1793  .6153 .86   .013   .013   .004  -.003   .007   .000
Si1z  .0025  .1793  .6153 .14   .013   .013   .004  -.003   .007   .000
Al2o  .6958  .1198  .1714 .86   .007   .008   .010   .004   .004   .001
Si2o  .6958  .1198  .1714 .14   .007   .008   .010   .004   .004   .001
Al2z  .6875  .1149  .6738 .14   .012   .011   .009  -.003   .006  -.002
Si2z  .6875  .1149  .6738 .86   .012   .011   .009  -.003   .006  -.002
OA(1) .0020  .1345 -.0010       .022   .021   .011   .004   .009  -.003
OA(2) .5984 -.0004  .1465       .014   .015   .018  -.003   .006  -.005
OB(o) .8294  .1294  .1079       .021   .021   .026  -.003   .015  -.005
OB(Z) .8148  .1322  .6163       .021   .015   .024  -.005   .011   .003
Oc(o) .0179  .3008  .1219       .023   .011   .023   .000   .008  -.001
Ocz   .0200  .3105  .6325       .012   .014   .020  -.001   .007  -.006
Odo   .1837  .1244  .1963       .020   .020   .014   .004   .000   .005
Odz   .1986  .1228  .7021       .015   .019   .016   .001   .006  -.001
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Feldspar
 
Tribaudino M, Benna P, Bruno E
Download am/vol83/AM83_159.pdf
American Mineralogist 83 (1998) 159-166
Structural variations induced by thermal treatment in lead feldspar (PbAl2Si2O8)
Sample: PbF_L16h, split Pb site
_database_code_amcsd 0001956
8.399 13.061 14.334 90 115.28 90 I2/c
atom      x      y      z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb'   .2731 -.0136  .0730  .6   .009   .039   .019  -.012   .003   .000
Pb"   .2726  .0058  .0691  .4   .037   .109   .048   .031   .014  -.002
Al1o  .0072  .1773  .1097 .14   .011   .013   .008  -.002   .004  -.002
Si1o  .0072  .1773  .1097 .86   .011   .013   .008  -.002   .004  -.002
Al1z  .0025  .1793  .6153 .86   .013   .013   .004  -.003   .007   .000
Si1z  .0025  .1793  .6153 .14   .013   .013   .004  -.003   .007   .000
Al2o  .6958  .1198  .1714 .86   .007   .008   .010   .004   .004   .001
Si2o  .6958  .1198  .1714 .14   .007   .008   .010   .004   .004   .001
Al2z  .6875  .1149  .6738 .14   .012   .011   .009  -.003   .006  -.002
Si2z  .6875  .1149  .6738 .86   .012   .011   .009  -.003   .006  -.002
OA(1) .0020  .1345 -.0010       .022   .021   .011   .004   .009  -.003
OA(2) .5984 -.0004  .1465       .014   .015   .018  -.003   .006  -.005
OB(o) .8294  .1294  .1079       .021   .021   .026  -.003   .015  -.005
OB(Z) .8148  .1322  .6163       .021   .015   .024  -.005   .011   .003
Oc(o) .0179  .3008  .1219       .023   .011   .023   .000   .008  -.001
Ocz   .0200  .3105  .6325       .012   .014   .020  -.001   .007  -.006
Odo   .1837  .1244  .1963       .020   .020   .014   .004   .000   .005
Odz   .1986  .1228  .7021       .015   .019   .016   .001   .006  -.001
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Feldspar
 
Tribaudino M, Benna P, Bruno E
Download am/vol83/AM83_159.pdf
American Mineralogist 83 (1998) 159-166
Structural variations induced by thermal treatment in lead feldspar (PbAl2Si2O8)
Sample: PbF_L64h, single Pb site
_database_code_amcsd 0001957
8.405 13.063 14.344 90 115.29 90 I2/c
atom     x      y      z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb   .2723 -.0076  .0718       .014   .074   .031  -.010   .006  -.005
Al1o .0068  .1769  .1091 .15   .013   .008   .007  -.004   .007  -.001
Si1o .0068  .1769  .1091 .85   .013   .008   .007  -.004   .007  -.001
Al1z .0027  .1799  .6162 .85   .008   .008   .007  -.003   .003  -.002
Si1z .0027  .1799  .6162 .15   .008   .008   .007  -.003   .003  -.002
Al2o .6968  .1195  .1720 .85   .006   .004   .011   .001   .002  -.001
Si2o .6968  .1195  .1720 .15   .006   .004   .011   .001   .002  -.001
Al2z .6883  .1148  .6734 .15   .006   .008   .010   .000   .005   .001
Si2z .6883  .1148  .6734 .85   .006   .008   .010   .000   .005   .001
Oa1  .0049  .1335  .0003       .022   .012   .008  -.001   .010   .000
Oa2  .5988 -.0010  .1456       .013   .005   .021   .003   .004   .009
Obo  .8256  .1295  .1079       .030   .013   .024  -.008   .020  -.002
Obz  .8157  .1300  .6156       .011   .020   .028  -.004   .008   .004
Oco  .0158  .3004  .1207       .015   .019   .022  -.003   .010   .002
Ocz  .0205  .3109  .6320       .018   .017   .011  -.002   .004  -.005
Odo  .1856  .1254  .1964       .027   .023   .011   .002   .008   .007
Odz  .1958  .1211  .7010       .008   .021   .015  -.001   .000  -.003
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Feldspar
 
Tribaudino M, Benna P, Bruno E
Download am/vol83/AM83_159.pdf
American Mineralogist 83 (1998) 159-166
Structural variations induced by thermal treatment in lead feldspar (PbAl2Si2O8)
Sample: PbF_L64h, split Pb site
_database_code_amcsd 0001958
8.405 13.063 14.344 90 115.29 90 I2/c
atom     x      y      z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb'  .2742  .0005  .0695  .6   .018   .118   .049   .013   .012   .001
Pb"  .2710 -.0136  .0737  .4   .010   .025   .015  -.015   .002  -.003
Al1o .0068  .1769  .1091 .15   .013   .008   .007  -.004   .007  -.001
Si1o .0068  .1769  .1091 .85   .013   .008   .007  -.004   .007  -.001
Al1z .0027  .1799  .6162 .85   .008   .008   .007  -.003   .003  -.002
Si1z .0027  .1799  .6162 .15   .008   .008   .007  -.003   .003  -.002
Al2o .6968  .1195  .1720 .85   .006   .004   .011   .001   .002  -.001
Si2o .6968  .1195  .1720 .15   .006   .004   .011   .001   .002  -.001
Al2z .6883  .1148  .6734 .15   .006   .008   .010   .000   .005   .001
Si2z .6883  .1148  .6734 .85   .006   .008   .010   .000   .005   .001
Oa1  .0049  .1335  .0003       .022   .012   .008  -.001   .010   .000
Oa2  .5988 -.0010  .1456       .013   .005   .021   .003   .004   .009
Obo  .8256  .1295  .1079       .030   .013   .024  -.008   .020  -.002
Obz  .8157  .1300  .6156       .011   .020   .028  -.004   .008   .004
Oco  .0158  .3004  .1207       .015   .019   .022  -.003   .010   .002
Ocz  .0205  .3109  .6320       .018   .017   .011  -.002   .004  -.005
Odo  .1856  .1254  .1964       .027   .023   .011   .002   .008   .007
Odz  .1958  .1211  .7010       .008   .021   .015  -.001   .000  -.003
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View JMOL 3-D Structure
 
Feldspar
 
Tribaudino M, Benna P, Bruno E
Download am/vol83/AM83_159.pdf
American Mineralogist 83 (1998) 159-166
Structural variations induced by thermal treatment in lead feldspar (PbAl2Si2O8)
Sample: PbF_H136h, single Pb site
_database_code_amcsd 0001959
8.418 13.076 14.365 90 115.28 90 I2/c
atom     x      y      z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb   .2723 -.0045  .0715       .015   .098   .032  -.016   .006  -.005
Al1o .0055  .1775  .1105 .29   .009   .016   .008  -.004   .002   .001
Si1o .0055  .1775  .1105 .71   .009   .016   .008  -.004   .002   .001
Al1z .0040  .1794  .6147 .71   .011   .012   .010  -.003   .006  -.001
Si1z .0040  .1794  .6147 .29   .011   .012   .010  -.003   .006  -.001
Al2o .6942  .1186  .1719 .71   .006   .007   .012  -.001   .004  -.001
Si2o .6942  .1186  .1719 .29   .006   .007   .012  -.001   .004  -.001
Al2z .6897  .1153  .6735 .29   .008   .012   .007   .000   .002  -.001
Si2z .6897  .1153  .6735 .71   .008   .012   .007   .000   .002  -.001
Oa1  .0021  .1342 -.0010       .019   .020   .012  -.001   .008  -.003
Oa2  .5992 -.0003  .1462       .010   .010   .025  -.001   .006  -.002
Obo  .8219  .1311  .1084       .017   .024   .027   .004   .010   .001
Obz  .8169  .1305  .6146       .019   .022   .030  -.004   .014  -.001
Oco  .0160  .3025  .1233       .023   .020   .021  -.006   .009   .003
Ocz  .0206  .3092  .6310       .014   .017   .027  -.006   .005  -.002
Odo  .1876  .1242  .1980       .018   .027   .015   .004   .002   .003
Odz  .1946  .1222  .7007       .016   .026   .016  -.002   .003  -.001
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Feldspar
 
Tribaudino M, Benna P, Bruno E
Download am/vol83/AM83_159.pdf
American Mineralogist 83 (1998) 159-166
Structural variations induced by thermal treatment in lead feldspar (PbAl2Si2O8)
Sample: PbF_H136h, split Pb site
_database_code_amcsd 0001960
8.418 13.076 14.365 90 115.28 90 I2/c
atom     x      y      z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb'  .2717 -.0141  .0743  .6   .013   .046   .023  -.011   .005   .005
Pb"  .2760  .0171  .0656  .4   .019   .072   .044   .014   .011   .020
Al1o .0055  .1775  .1105 .29   .009   .016   .008  -.004   .002   .001
Si1o .0055  .1775  .1105 .71   .009   .016   .008  -.004   .002   .001
Al1z .0040  .1794  .6147 .71   .011   .012   .010  -.003   .006  -.001
Si1z .0040  .1794  .6147 .29   .011   .012   .010  -.003   .006  -.001
Al2o .6942  .1186  .1719 .71   .006   .007   .012  -.001   .004  -.001
Si2o .6942  .1186  .1719 .29   .006   .007   .012  -.001   .004  -.001
Al2z .6897  .1153  .6735 .29   .008   .012   .007   .000   .002  -.001
Si2z .6897  .1153  .6735 .71   .008   .012   .007   .000   .002  -.001
Oa1  .0021  .1342 -.0010       .019   .020   .012  -.001   .008  -.003
Oa2  .5992 -.0003  .1462       .010   .010   .025  -.001   .006  -.002
Obo  .8219  .1311  .1084       .017   .024   .027   .004   .010   .001
Obz  .8169  .1305  .6146       .019   .022   .030  -.004   .014  -.001
Oco  .0160  .3025  .1233       .023   .020   .021  -.006   .009   .003
Ocz  .0206  .3092  .6310       .014   .017   .027  -.006   .005  -.002
Odo  .1876  .1242  .1980       .018   .027   .015   .004   .002   .003
Odz  .1946  .1222  .7007       .016   .026   .016  -.002   .003  -.001
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Feldspar
 
Benna P, Tribaudino M, Bruno E
Download am/vol84/AM84_120.pdf
American Mineralogist 84 (1999) 120-129
High-temperature in situ structural investigation on lead feldspar
Sample at T = 20 C, single Pb atom model
_database_code_amcsd 0002065
8.402 13.043 14.308 90 115.30 90 I2/c
atom       x      y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb     .2709 -.0080 .0723       .012   .055   .028  -.004   .005  -.002
Si1(O) .0062  .1767 .1097 .71   .009   .013   .010  -.002   .004  -.000
Al1(O) .0062  .1767 .1097 .29   .009   .013   .010  -.002   .004  -.000
Si1(z) .0033  .1794 .6156 .71   .005   .012   .007  -.002   .001  -.000
Al1(z) .0033  .1794 .6156 .29   .005   .012   .007  -.002   .001  -.000
Si2(O) .6950  .1192 .1717 .71   .004   .009   .008   .000   .000   .000
Al2(O) .6950  .1192 .1717 .29   .004   .009   .008   .000   .000   .000
Si2(z) .6883  .1147 .6739 .71   .006   .010   .012   .000   .004  -.001
Al2(z) .6883  .1147 .6739 .29   .006   .010   .012   .000   .004  -.001
OA(1)  .0041  .1342 .0012       .018   .024   .006  -.003   .005   .000
OA(2)  .5986 -.0011 .1470       .008   .010   .020  -.001   .001   .000
OB(O)  .8248  .1297 .1074       .011   .022   .024  -.003   .008   .000
OB(z)  .8144  .1311 .6170       .017   .025   .029  -.005   .013   .001
OC(O)  .0178  .3006 .1224       .012   .022   .020  -.005   .005  -.003
OC(z)  .0183  .3103 .6323       .021   .015   .018  -.009   .005  -.003
OD(O)  .1857  .1240 .1969       .013   .026   .011   .001  -.001   .002
OD(z)  .1987  .1212 .7010       .014   .021   .013  -.002   .000   .003
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Feldspar
 
Benna P, Tribaudino M, Bruno E
Download am/vol84/AM84_120.pdf
American Mineralogist 84 (1999) 120-129
High-temperature in situ structural investigation on lead feldspar
Sample at T = 230 C, single Pb atom model
_database_code_amcsd 0002066
8.422 13.045 14.310 90 115.34 90 I2/c
atom       x      y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb     .2731 -.0063 .0713       .021   .084   .044  -.006   .008  -.004
Si1(O) .0059  .1777 .1100 .71   .016   .019   .012  -.004   .005   .001
Al1(O) .0059  .1777 .1100 .29   .016   .019   .012  -.004   .005   .001
Si1(z) .0039  .1798 .6158 .71   .011   .017   .013  -.003   .005   .001
Al1(z) .0039  .1798 .6158 .29   .011   .017   .013  -.003   .005   .001
Si2(O) .6959  .1194 .1714 .71   .013   .013   .015   .002   .002   .002
Al2(O) .6959  .1194 .1714 .29   .013   .013   .015   .002   .002   .002
Si2(z) .6901  .1148 .6732 .71   .008   .018   .015  -.003   .003  -.003
Al2(z) .6901  .1148 .6732 .29   .008   .018   .015  -.003   .003  -.003
OA(1)  .0041  .1342 .0011       .029   .031   .014  -.001   .009  -.001
OA(2)  .6023 -.0016 .1462       .011   .016   .038   .000   .004  -.001
OB(O)  .8236  .1310 .1078       .017   .037   .029  -.008   .008   .001
OB(z)  .8153  .1320 .6159       .031   .039   .052  -.007   .028   .001
OC(O)  .0200  .3011 .1217       .020   .032   .026  -.008   .012  -.002
OC(z)  .0176  .3101 .6332       .026   .027   .036  -.010   .011  -.006
OD(O)  .1815  .1252 .1976       .028   .037   .022   .004   .005  -.001
OD(z)  .1982  .1208 .7011       .012   .035   .016  -.001  -.002   .005
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Feldspar
 
Benna P, Tribaudino M, Bruno E
Download am/vol84/AM84_120.pdf
American Mineralogist 84 (1999) 120-129
High-temperature in situ structural investigation on lead feldspar
Sample at T = 465 C, single Pb atom model
_database_code_amcsd 0002067
8.440 13.051 14.325 90 115.33 90 I2/c
atom       x      y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb     .2745 -.0050 .0706       .026   .104   .056  -.009   .011  -.007
Si1(O) .0061  .1786 .1095 .71   .024   .024   .019  -.004   .012   .000
Al1(O) .0061  .1786 .1095 .29   .024   .024   .019  -.004   .012   .000
Si1(z) .0039  .1802 .6160 .71   .011   .018   .014  -.006   .003  -.001
Al1(z) .0039  .1802 .6160 .29   .011   .018   .014  -.006   .003  -.001
Si2(O) .6980  .1194 .1727 .71   .006   .018   .017   .001   .001   .002
Al2(O) .6980  .1194 .1727 .29   .006   .018   .017   .001   .001   .002
Si2(z) .6890  .1152 .6726 .71   .019   .019   .024  -.005   .010  -.005
Al2(z) .6890  .1152 .6726 .29   .019   .019   .024  -.005   .010  -.005
OA(1)  .0028  .1347 .0009       .034   .041   .015   .001   .011  -.007
OA(2)  .6037 -.0012 .1468       .018   .019   .046   .015   .008   .000
OB(O)  .8287  .1308 .1100       .036   .043   .041  -.012   .020  -.007
OB(z)  .8128  .1329 .6134       .022   .051   .062  -.010   .024   .008
OC(O)  .0138  .3023 .1207       .024   .040   .027  -.005   .010  -.010
OC(z)  .0265  .3096 .6356       .034   .020   .058  -.019   .012  -.006
OD(O)  .1789  .1261 .1969       .042   .048   .036   .015   .010  -.002
OD(z)  .1983  .1217 .7015       .013   .046   .016  -.002  -.003   .008
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Feldspar
 
Benna P, Tribaudino M, Bruno E
Download am/vol84/AM84_120.pdf
American Mineralogist 84 (1999) 120-129
High-temperature in situ structural investigation on lead feldspar
Sample at T = 700 C, single Pb atom model
_database_code_amcsd 0002068
8.448 13.057 7.166 90 115.25 90 C2/m
atom      x      y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb    .2760 -.0041 .1404       .038   .130   .076  -.011   .016  -.011
Si1   .0051  .1798 .2253 .71   .029   .032   .031  -.005   .012   .001
Al1   .0051  .1798 .2253 .29   .029   .032   .031  -.005   .012   .001
Si2   .6948  .1174 .3453 .71   .019   .024   .030  -.001   .007  -.001
Al2   .6948  .1174 .3453 .29   .019   .024   .030  -.001   .007  -.001
OA(1)     0  .1351     0       .049   .055   .029      0   .022      0
OA(2) .6057      0 .2918       .030   .024   .066      0   .013      0
OB    .8203  .1334 .2243       .041   .063   .064  -.015   .025  -.001
OC    .0215  .3072 .2543       .041   .039   .066  -.011   .021  -.003
OD    .1899  .1248 .3983       .043   .060   .038   .006   .009   .002
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Feldspar
 
Benna P, Tribaudino M, Bruno E
Download am/vol84/AM84_120.pdf
American Mineralogist 84 (1999) 120-129
High-temperature in situ structural investigation on lead feldspar
Sample at T = 20 C, split Pb atom model
_database_code_amcsd 0002069
8.402 13.043 14.308 90 115.30 90 I2/c
atom       x      y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb'    .2698 -.0113 .0730 .74   .012   .040   .023  -.008   .005  -.001
Pb"    .2768  .0103 .0687 .26   .011   .080   .047   .009   .008   .004
Si1(O) .0062  .1767 .1097 .71   .009   .013   .010  -.002   .004  -.000
Al1(O) .0062  .1767 .1097 .29   .009   .013   .010  -.002   .004  -.000
Si1(z) .0033  .1794 .6156 .71   .005   .012   .007  -.002   .001  -.000
Al1(z) .0033  .1794 .6156 .29   .005   .012   .007  -.002   .001  -.000
Si2(O) .6950  .1192 .1717 .71   .004   .009   .008   .000   .000   .000
Al2(O) .6950  .1192 .1717 .29   .004   .009   .008   .000   .000   .000
Si2(z) .6883  .1147 .6739 .71   .006   .010   .012   .000   .004  -.001
Al2(z) .6883  .1147 .6739 .29   .006   .010   .012   .000   .004  -.001
OA(1)  .0041  .1342 .0012       .018   .024   .006  -.003   .005   .000
OA(2)  .5986 -.0011 .1470       .008   .010   .020  -.001   .001   .000
OB(O)  .8248  .1297 .1074       .011   .022   .024  -.003   .008   .000
OB(z)  .8144  .1311 .6170       .017   .025   .029  -.005   .013   .001
OC(O)  .0178  .3006 .1224       .012   .022   .020  -.005   .005  -.003
OC(z)  .0183  .3103 .6323       .021   .015   .018  -.009   .005  -.003
OD(O)  .1857  .1240 .1969       .013   .026   .011   .001  -.001   .002
OD(z)  .1987  .1212 .7010       .014   .021   .013  -.002   .000   .003
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Feldspar
 
Benna P, Tribaudino M, Bruno E
Download am/vol84/AM84_120.pdf
American Mineralogist 84 (1999) 120-129
High-temperature in situ structural investigation on lead feldspar
Sample at T = 230 C, split Pb atom model
_database_code_amcsd 0002070
8.422 13.045 14.310 90 115.34 90 I2/c
atom       x      y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb'    .2705 -.0136 .0726 .59   .021   .054   .034  -.013   .007  -.001
Pb"    .2787  .0089 .0686 .41   .019   .081   .061   .006   .012   .005
Si1(O) .0059  .1777 .1100 .71   .016   .019   .012  -.004   .005   .001
Al1(O) .0059  .1777 .1100 .29   .016   .019   .012  -.004   .005   .001
Si1(z) .0039  .1798 .6158 .71   .011   .017   .013  -.003   .005   .001
Al1(z) .0039  .1798 .6158 .29   .011   .017   .013  -.003   .005   .001
Si2(O) .6959  .1194 .1714 .71   .013   .013   .015   .002   .002   .002
Al2(O) .6959  .1194 .1714 .29   .013   .013   .015   .002   .002   .002
Si2(z) .6901  .1148 .6732 .71   .008   .018   .015  -.003   .003  -.003
Al2(z) .6901  .1148 .6732 .29   .008   .018   .015  -.003   .003  -.003
OA(1)  .0041  .1342 .0011       .029   .031   .014  -.001   .009  -.001
OA(2)  .6023 -.0016 .1462       .011   .016   .038   .000   .004  -.001
OB(O)  .8236  .1310 .1078       .017   .037   .029  -.008   .008   .001
OB(z)  .8153  .1320 .6159       .031   .039   .052  -.007   .028   .001
OC(O)  .0200  .3011 .1217       .020   .032   .026  -.008   .012  -.002
OC(z)  .0176  .3101 .6332       .026   .027   .036  -.010   .011  -.006
OD(O)  .1815  .1252 .1976       .028   .037   .022   .004   .005  -.001
OD(z)  .1982  .1208 .7011       .012   .035   .016  -.001  -.002   .005
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Feldspar
 
Benna P, Tribaudino M, Bruno E
Download am/vol84/AM84_120.pdf
American Mineralogist 84 (1999) 120-129
High-temperature in situ structural investigation on lead feldspar
Sample at T = 465 C, split Pb atom model
_database_code_amcsd 0002071
8.440 13.051 14.325 90 115.33 90 I2/c
atom       x      y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb'    .2703 -.0157 .0717 .44   .024   .063   .043  -.021   .010  -.005
Pb"    .2798  .0068 .0693 .56   .026   .098   .071   .004   .013  -.000
Si1(O) .0061  .1786 .1095 .71   .024   .024   .019  -.004   .012   .000
Al1(O) .0061  .1786 .1095 .29   .024   .024   .019  -.004   .012   .000
Si1(z) .0039  .1802 .6160 .71   .011   .018   .014  -.006   .003  -.001
Al1(z) .0039  .1802 .6160 .29   .011   .018   .014  -.006   .003  -.001
Si2(O) .6980  .1194 .1727 .71   .006   .018   .017   .001   .001   .002
Al2(O) .6980  .1194 .1727 .29   .006   .018   .017   .001   .001   .002
Si2(z) .6890  .1152 .6726 .71   .019   .019   .024  -.005   .010  -.005
Al2(z) .6890  .1152 .6726 .29   .019   .019   .024  -.005   .010  -.005
OA(1)  .0028  .1347 .0009       .034   .041   .015   .001   .011  -.007
OA(2)  .6037 -.0012 .1468       .018   .019   .046   .015   .008   .000
OB(O)  .8287  .1308 .1100       .036   .043   .041  -.012   .020  -.007
OB(z)  .8128  .1329 .6134       .022   .051   .062  -.010   .024   .008
OC(O)  .0138  .3023 .1207       .024   .040   .027  -.005   .010  -.010
OC(z)  .0265  .3096 .6356       .034   .020   .058  -.019   .012  -.006
OD(O)  .1789  .1261 .1969       .042   .048   .036   .015   .010  -.002
OD(z)  .1983  .1217 .7015       .013   .046   .016  -.002  -.003   .008
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Feldspar
 
Benna P, Tribaudino M, Bruno E
Download am/vol84/AM84_120.pdf
American Mineralogist 84 (1999) 120-129
High-temperature in situ structural investigation on lead feldspar
Sample at T = 700 C, split Pb atom model
_database_code_amcsd 0002072
8.448 13.057 7.166 90 115.25 90 C2/m
atom      x      y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb'   .2771 -.0158 .1405  .5   .039   .083   .076  -.013   .016  -.003
Pb"   .2771  .0158 .1405  .5   .039   .083   .076   .013   .016   .003
Si1   .0051  .1798 .2253 .71   .029   .032   .031  -.005   .012   .001
Al1   .0051  .1798 .2253 .29   .029   .032   .031  -.005   .012   .001
Si2   .6948  .1174 .3453 .71   .019   .024   .030  -.001   .007  -.001
Al2   .6948  .1174 .3453 .29   .019   .024   .030  -.001   .007  -.001
OA(1)     0  .1351     0       .049   .055   .029      0   .022      0
OA(2) .6057      0 .2918       .030   .024   .066      0   .013      0
OB    .8203  .1334 .2243       .041   .063   .064  -.015   .025  -.001
OC    .0215  .3072 .2543       .041   .039   .066  -.011   .021  -.003
OD    .1899  .1248 .3983       .043   .060   .038   .006   .009   .002
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Clinoenstatite
Download hom/clinoenstatite.pdf
Tribaudino M, Nestola F, Camara F, Domeneghetti M C
Download am/vol87/AM87_648.pdf
American Mineralogist 87 (2002) 648-657
The high-temperature P2_1/c - C2/c phase transition in Fe-free pyroxene
(Ca.15Mg1.85Si2O6): Structural and thermodynamic behavior
Sample: dien1 T = 1038 deg C
_database_code_amcsd 0002799
9.773 8.962 5.271 90 108.99 90 P2_1/c
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
O1A  .86851 .33792 .17346     .02453 .02270 .02279 .02392  .00603 .00185 -.00022
O1B  .37326 .84298 .13288     .02440 .01854 .03292 .02364  .00073 .00944  .00263
O2A  .12306 .49709 .33023     .03242 .03611 .02643 .03503 -.01207 .01199 -.01426
O2B  .62729 .98937 .37205     .04033 .03885 .03969 .04646 -.01300 .01940 -.00072
O3A  .10337 .26371 .58561     .03129 .01962 .03966 .03383 -.00139 .00765  .01987
O3B  .60188 .71307 .48527     .03133 .02920 .03944 .02786  .00495 .01272  .01246
SiA  .04316 .33983 .27886     .01932 .01836 .01747 .02239 -.00196 .00700  .00228
SiB  .54744 .84026 .24409     .02209 .01627 .02454 .02556 -.00322 .00695 -.00196
Mg1  .24987 .65144 .23118     .02581 .02716 .02629 .02310 -.00454 .00695  .00247
Mg2  .25375 .01747 .23273 .85 .04168 .03847 .04574 .03479  .00308 .00362  .00580
Ca2  .25375 .01747 .23273 .15 .04168 .03847 .04574 .03479  .00308 .00362  .00580
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Clinoenstatite
Download hom/clinoenstatite.pdf
Tribaudino M, Nestola F, Camara F, Domeneghetti M C
Download am/vol87/AM87_648.pdf
American Mineralogist 87 (2002) 648-657
The high-temperature P2_1/c - C2/c phase transition in Fe-free pyroxene
(Ca.15Mg1.85Si2O6): Structural and thermodynamic behavior
Sample: dien1 T = 25 deg C
_database_code_amcsd 0002800
9.651 8.846 5.202 90 108.34 90 P2_1/c
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
O1A  .86657 .33948 .17890     .00662 .00494 .00690 .00789  .00005 .00181  .00066
O1B  .37428 .83968 .12721     .00668 .00494 .00843 .00658  .00005 .00169  .00046
O2A  .12121 .50101 .32229     .00800 .00980 .00567 .00908 -.00218 .00377 -.00030
O2B  .63154 .98539 .38134     .01184 .01156 .00931 .01722 -.00530 .00822 -.00598
O3A  .10505 .27466 .60141     .01017 .00700 .01225 .01143  .00084 .00314  .00524
O3B  .60473 .70086 .46442     .01001 .00686 .01411 .00909  .00095 .00255  .00505
SiA  .04243 .34128 .28683     .00555 .00529 .00501 .00701 -.00049 .00286 -.00051
SiB  .55079 .83814 .23243     .00561 .00533 .00528 .00662 -.00079 .00245 -.00065
Mg1  .25088 .65386 .22278     .00694 .00693 .00705 .00690 -.00003 .00227  .00070
Mg2  .25548 .01774 .22147 .85 .01290 .01046 .01878 .00911  .00380 .00257  .00467
Ca2  .25548 .01774 .22147 .15 .01290 .01046 .01878 .00911  .00380 .00257  .00467
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Clinoenstatite
Download hom/clinoenstatite.pdf
Tribaudino M, Nestola F, Camara F, Domeneghetti M C
Download am/vol87/AM87_648.pdf
American Mineralogist 87 (2002) 648-657
The high-temperature P2_1/c - C2/c phase transition in Fe-free pyroxene
(Ca.15Mg1.85Si2O6): Structural and thermodynamic behavior
Sample: dien2, T = 25 deg C
_database_code_amcsd 0002801
9.651 8.846 5.202 90 108.38 90 P2_1/c
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
O1A  .86654 .33948 .17873     .00580 .00462 .00691 .00576 -.00039 .00148  .00063
O1B  .37433 .83963 .12772     .00613 .00485 .00782 .00577  .00024 .00173 -.00011
O2A  .12099 .50111 .32199     .00696 .00807 .00544 .00744 -.00177 .00256  .00011
O2B  .63185 .98529 .38213     .01077 .01096 .00879 .01507 -.00394 .00770 -.00468
O3A  .10514 .27488 .60177     .00895 .00587 .01133 .00964  .00057 .00245  .00488
O3B  .60463 .70100 .46426     .00940 .00656 .01388 .00809  .00099 .00278  .00498
SiA  .04237 .34128 .28684     .00476 .00442 .00493 .00526 -.00039 .00200 -.00029
SiB  .55077 .83808 .23258     .00481 .00489 .00454 .00537 -.00092 .00216 -.00110
Mg1  .25087 .65381 .22287     .00589 .00619 .00638 .00485  .00042 .00140  .00081
Mg2  .25554 .01760 .22156 .85 .01245 .01036 .01842 .00807  .00389 .00217  .00436
Ca2  .25554 .01760 .22156 .15 .01245 .01036 .01842 .00807  .00389 .00217  .00436
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Clinoenstatite
Download hom/clinoenstatite.pdf
Tribaudino M, Nestola F, Camara F, Domeneghetti M C
Download am/vol87/AM87_648.pdf
American Mineralogist 87 (2002) 648-657
The high-temperature P2_1/c - C2/c phase transition in Fe-free pyroxene
(Ca.15Mg1.85Si2O6): Structural and thermodynamic behavior
Sample: dien2, T = 500 deg C
_database_code_amcsd 0002802
9.702 8.903 5.228 90 108.58 90 P2_1/c
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
O1A  .86787 .33936 .17583     .01344 .01116 .01636 .01215  .00051 .00277  .00092
O1B  .37361 .84055 .12950     .01439 .01158 .01779 .01337  .00056 .00339 -.00113
O2A  .12166 .49977 .32593     .01669 .01970 .01221 .01864 -.00565 .00678 -.00106
O2B  .63063 .98561 .37802     .02159 .02271 .01862 .02613 -.00892 .01157 -.00709
O3A  .10420 .27096 .59479     .01976 .01449 .02546 .01936 -.00050 .00543  .00943
O3B  .60331 .70554 .47150     .01895 .01617 .02381 .01785  .00308 .00678  .00876
SiA  .04254 .34090 .28445     .01075 .01050 .01105 .01145 -.00124 .00454 -.00106
SiB  .54985 .83826 .23615     .01066 .01050 .01029 .01172 -.00119 .00429 -.00072
Mg1  .25060 .65285 .22641     .01490 .01596 .01404 .01463  .00035 .00480  .00053
Mg2  .25495 .01784 .22514 .85 .02354 .02404 .02834 .01646  .00507 .00394  .00404
Ca2  .25495 .01784 .22514 .15 .02354 .02404 .02834 .01646  .00507 .00394  .00404
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Clinoenstatite
Download hom/clinoenstatite.pdf
Tribaudino M, Nestola F, Camara F, Domeneghetti M C
Download am/vol87/AM87_648.pdf
American Mineralogist 87 (2002) 648-657
The high-temperature P2_1/c - C2/c phase transition in Fe-free pyroxene
(Ca.15Mg1.85Si2O6): Structural and thermodynamic behavior
Sample: dien2, T = 650 deg C
_database_code_amcsd 0002803
9.713 8.913 5.234 90 108.64 90 P2_1/c
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
O1A  .86807 .33954 .17543     .01717 .01259 .02205 .01565 -.00213 .00282 -.00038
O1B  .37321 .84096 .13015     .01491 .01344 .01662 .01427  .00024 .00386 -.00023
O2A  .12149 .49930 .32662     .02036 .02458 .01618 .02138 -.00751 .00883 -.00333
O2B  .63021 .98629 .37674     .02326 .02393 .01912 .02850 -.00742 .01085 -.00684
O3A  .10371 .27021 .59168     .02110 .01794 .02438 .02033 -.00114 .00521  .00996
O3B  .60314 .70639 .47337     .01973 .01803 .02328 .01792  .00399 .00582  .00860
SiA  .04250 .34052 .28366     .01172 .01182 .01240 .01091 -.00126 .00359 -.00098
SiB  .54963 .83857 .23700     .01133 .01181 .01040 .01178 -.00170 .00377 -.00118
Mg1  .25025 .65276 .22705     .01589 .01807 .01629 .01330  .00098 .00501  .00100
Mg2  .25478 .01793 .22547 .85 .02602 .02634 .03240 .01676  .00475 .00326  .00277
Ca2  .25478 .01793 .22547 .15 .02602 .02634 .03240 .01676  .00475 .00326  .00277
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Clinoenstatite
Download hom/clinoenstatite.pdf
Tribaudino M, Nestola F, Camara F, Domeneghetti M C
Download am/vol87/AM87_648.pdf
American Mineralogist 87 (2002) 648-657
The high-temperature P2_1/c - C2/c phase transition in Fe-free pyroxene
(Ca.15Mg1.85Si2O6): Structural and thermodynamic behavior
Sample: dien2, T = 800 deg C
_database_code_amcsd 0002804
9.739 8.936 5.249 90 108.80 90 P2_1/c
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
O1A  .86828 .33961 .17249     .01942 .01595 .02406 .01797  .00094 .00505  .00149
O1B  .37346 .84123 .13248     .01912 .01476 .02284 .01853  .00146 .00368 -.00057
O2A  .12164 .49858 .32875     .02349 .02631 .01887 .02612 -.00863 .00961 -.00341
O2B  .62975 .98637 .37552     .02678 .03137 .02224 .02992 -.00943 .01431 -.00841
O3A  .10313 .26764 .58800     .02651 .02048 .03486 .02415 -.00056 .00716  .01199
O3B  .60222 .70925 .47905     .02480 .02226 .03067 .02337  .00350 .00998  .01248
SiA  .04294 .34079 .28246     .01375 .01284 .01520 .01384 -.00107 .00518 -.00056
SiB  .54865 .83882 .23917     .01385 .01469 .01415 .01394 -.00138 .00632 -.00078
Mg1  .25051 .65217 .22924     .02020 .02213 .02058 .01778  .00014 .00625  .00025
Mg2  .25431 .01745 .22774 .85 .03230 .03421 .03803 .02157  .00622 .00470  .00261
Ca2  .25431 .01745 .22774 .15 .03230 .03421 .03803 .02157  .00622 .00470  .00261
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Clinoenstatite
Download hom/clinoenstatite.pdf
Tribaudino M, Nestola F, Camara F, Domeneghetti M C
Download am/vol87/AM87_648.pdf
American Mineralogist 87 (2002) 648-657
The high-temperature P2_1/c - C2/c phase transition in Fe-free pyroxene
(Ca.15Mg1.85Si2O6): Structural and thermodynamic behavior
Sample: dien2, T = 1000 deg C
_database_code_amcsd 0002805
9.752 8.949 5.255 90 108.84 90 P2_1/c
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
O1A  .86862 .33890 .17197     .02075 .01655 .02735 .01874  .00345 .00625  .00100
O1B  .37311 .84175 .13310     .02136 .01986 .02434 .02009  .00202 .00674  .00018
O2A  .12226 .49844 .33087     .02613 .02956 .01942 .03102 -.00833 .01199 -.00410
O2B  .62858 .98692 .37344     .03082 .03185 .02848 .03628 -.01373 .01675 -.00999
O3A  .10324 .26674 .58704     .02842 .02092 .03935 .02482  .00030 .00715  .01704
O3B  .60230 .71138 .48337     .02867 .02675 .03591 .02514  .00777 .01085  .01352
SiA  .04317 .34038 .28182     .01524 .01501 .01670 .01515 -.00186 .00645 -.00167
SiB  .54817 .83878 .24048     .01576 .01547 .01633 .01619 -.00176 .00609 -.00152
Mg1  .25048 .65186 .23090     .02196 .02398 .02230 .01975 -.00015 .00728  .00060
Mg2  .25426 .01793 .22864 .85 .03481 .03785 .04023 .02357  .00768 .00606  .00239
Ca2  .25426 .01793 .22864 .15 .03481 .03785 .04023 .02357  .00768 .00606  .00239
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Pigeonite
Download hom/pigeonite.pdf
Nestola F, Tribaudino M, Ballaran T B
Download am/vol89/AM89_189.pdf
American Mineralogist 89 (2004) 189-196
High pressure behavior, transformation and crystal structure of synthetic iron-free pigeonite
Sample: P = 0 GPa
_database_code_amcsd 0003197
9.646 8.842 5.201 90 108.35 90 P2_1/c
atom     x     y     z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
MgM2 .2553 .0174 .2223 .85  1.7  .0210  .0196  .0174  .0043 -.0059  .0042
CaM2 .2553 .0174 .2223 .15  1.7  .0210  .0196  .0174  .0043 -.0059  .0042
MgM1 .2509 .6538 .2217      .71
SiTA .0424 .3409 .2873      .62
SiTB .5505 .8378 .2329      .65
O1A  .8671 .3394  .178      .78
O2A  .1207 .5016  .324      .79
O3A  .1067 .2738  .600      .80
O1B  .3739 .8398  .128      .79
O2B  .6307 .9852  .381     1.26
O3B  .6047 .7009  .467     1.03
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Pigeonite
Download hom/pigeonite.pdf
Nestola F, Tribaudino M, Ballaran T B
Download am/vol89/AM89_189.pdf
American Mineralogist 89 (2004) 189-196
High pressure behavior, transformation and crystal structure of synthetic iron-free pigeonite
Sample: P = 2.6 GPa
_database_code_amcsd 0003198
9.546 8.732 5.149 90 108.12 90 P2_1/c
atom     x     y     z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
MgM2 .2562 .0196 .2202 .85  1.1  .0117  .0192  .0110  .0062	 .0053  .0040
CaM2 .2562 .0196 .2202 .15  1.1  .0117  .0192  .0110  .0062	 .0053  .0040
MgM1 .2504 .6552 .2216      .75
SiTA .0422 .3415 .2862      .66
SiTB .5520 .8387 .2281      .72
O1A  .8656 .3394  .182      .79
O2A  .1206 .5034  .319       .7
O3A  .1054 .2748  .600      1.0
O1B  .3735 .8383 .1265       .8
O2B  .6293 .9861  .382      1.3
O3B  .6062 .6986  .458       .9
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Pigeonite
Download hom/pigeonite.pdf
Nestola F, Tribaudino M, Ballaran T B
Download am/vol89/AM89_189.pdf
American Mineralogist 89 (2004) 189-196
High pressure behavior, transformation and crystal structure of synthetic iron-free pigeonite
Sample: P = 4.5 GPa
_database_code_amcsd 0003199
9.523 8.700 5.136 90 107.80 90 P2_1/c
atom     x     y     z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
MgM2 .2562 .0204 .2179 .85  1.2  .0150  .0158  .0106  .0020 -.0012  .0052
CaM2 .2562 .0204 .2179 .15  1.2  .0150  .0158  .0106  .0020 -.0012  .0052
MgM1 .2514 .6559 .2192      .63
SiTA .0416 .3424 .2866      .54
SiTB .5516 .8381 .2289      .57
O1A   .865 .3401  .182      .79
O2A  .1194 .5051  .318      .63
O3A  .1076 .2756  .603      .87
O1B  .3752 .8389  .124      .71
O2B  .6321 .9871  .383     1.03
O3B  .6086 .6961  .455      .87
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Pigeonite
Download hom/pigeonite.pdf
Nestola F, Tribaudino M, Ballaran T B
Download am/vol89/AM89_189.pdf
American Mineralogist 89 (2004) 189-196
High pressure behavior, transformation and crystal structure of synthetic iron-free pigeonite
Sample: P = 6.2 GPa
_database_code_amcsd 0003200
9.291 8.679 4.963 90 102.22 90 C2/c
atom      x      y      z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
MgM2      0  .2789    .25 .85   .8  .0093  .0147  .0073      0  .0017      0
CaM2      0  .2789    .25 .15   .8  .0093  .0147  .0073      0  .0017      0
MgM1      0  .9065    .25      .55
SiT   .2976  .0918  .2139      .49
O1    .1214  .0905   .139      .63
O2    .3764  .2391   .364      .83
O3    .3546  .0562   .925      .69
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NaGaSi2O6
 
Nestola F, Rotiroti N, Bruno M, Tribaudino M, van Smaalen S, Ohashi H,
Redhammer G J
 
American Mineralogist 92 (2007) 560-569
Low-temperature behavior of NaGaSi2O6
Sample: T = 295 K
_database_code_amcsd 0004307
9.5531 8.6983 5.2684 90 107.629 90 C2/c
atom      x      y      z   Uiso
Na        0 .30038    .25  .0108
Ga        0 .90189    .25 .00348
Si   .29116 .09112 .23220 .00314
O1   .11188 .07804 .13365  .0044
O2   .35874 .25894 .30170  .0062
O3   .35265 .00957 .00787  .0055
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NaGaSi2O6
 
Nestola F, Rotiroti N, Bruno M, Tribaudino M, van Smaalen S, Ohashi H,
Redhammer G J
 
American Mineralogist 92 (2007) 560-569
Low-temperature behavior of NaGaSi2O6
Sample: T = 235 K
_database_code_amcsd 0004308
9.5494 8.6924 5.2673 90 107.631 90 C2/c
atom      x      y      z   Uiso
Na        0 .30046    .25  .0090
Ga        0 .90210    .25 .00294
Si   .29119 .09122 .23236 .00274
O1   .11199 .07797 .13373  .0037
O2   .35868 .25913 .30187  .0053
O3   .35284 .00984 .00773  .0048
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NaGaSi2O6
 
Nestola F, Rotiroti N, Bruno M, Tribaudino M, van Smaalen S, Ohashi H,
Redhammer G J
 
American Mineralogist 92 (2007) 560-569
Low-temperature behavior of NaGaSi2O6
Sample: T = 190 K
_database_code_amcsd 0004309
9.5472 8.6894 5.2667 90 107.632 90 C2/c
atom      x      y      z   Uiso
Na        0 .30051    .25  .0074
Ga        0 .90219    .25 .00244
Si   .29119 .09127 .23241 .00237
O1   .11191 .07803 .13350  .0032
O2   .35878 .25935 .30219  .0046
O3   .35285 .00980 .00769  .0041
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NaGaSi2O6
 
Nestola F, Rotiroti N, Bruno M, Tribaudino M, van Smaalen S, Ohashi H,
Redhammer G J
 
American Mineralogist 92 (2007) 560-569
Low-temperature behavior of NaGaSi2O6
Sample: T = 145 K
_database_code_amcsd 0004310
9.5453 8.6864 5.2662 90 107.630 90 C2/c
atom      x      y      z   Uiso
Na        0 .30047    .25  .0062
Ga        0 .90232    .25 .00201
Si   .29121 .09129 .23263 .00206
O1   .11187 .07812 .13369  .0030
O2   .35880 .25936 .30240  .0039
O3   .35303 .00986 .00795  .0036
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NaGaSi2O6
 
Nestola F, Rotiroti N, Bruno M, Tribaudino M, van Smaalen S, Ohashi H,
Redhammer G J
 
American Mineralogist 92 (2007) 560-569
Low-temperature behavior of NaGaSi2O6
Sample: T = 110 K
_database_code_amcsd 0004311
9.5442 8.6849 5.2662 90 107.628 90 C2/c
atom      x      y      z   Uiso
Na        0 .30058    .25  .0052
Ga        0 .90238    .25 .00163
Si   .29125 .09128 .23264 .00183
O1   .11190 .07820 .13385 .00276
O2   .35882 .25945 .30267  .0034
O3   .35297 .00994 .00775  .0032
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Jadeite
Download hom/jadeite.pdf
Nestola F, Tribaudino M, Ballaran T B, Liebske C, Bruno M
Download am/vol92/AM92_1492.pdf
American Mineralogist 92 (2007) 1492-1501
The crystal structures of pyroxenes along the jadeite - hedenbergite and
jadeite - aegirine joins
Locality: synthetic
Sample: Jd100Ae0
_database_code_amcsd 0004445
9.4278 8.5651 5.2262 90 107.624 90 C2/c
atom      x      y      z   Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
NaM2      0  .3002    .25  .0108  .0146  .0075  .0090      0 -.0006      0
AlM1      0 .90604    .25  .0043  .0048  .0044  .0042      0  .0012      0
SiT  .29072 .09342 .22822 .00383  .0039  .0040  .0041 -.0003  .0010 -.0004
O1    .1092  .0760  .1284  .0049  .0043  .0053  .0054 -.0004  .0009 -.0003
O2    .3610  .2634  .2935  .0070  .0076  .0052  .0084 -.0020  .0022 -.0004
O3    .3536  .0071  .0067  .0065  .0059  .0083  .0059  .0006  .0013 -.0025
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Jadeite
Download hom/jadeite.pdf
Nestola F, Tribaudino M, Ballaran T B, Liebske C, Bruno M
Download am/vol92/AM92_1492.pdf
American Mineralogist 92 (2007) 1492-1501
The crystal structures of pyroxenes along the jadeite - hedenbergite and
jadeite - aegirine joins
Locality: synthetic
Sample: Jd74Ae26
_database_code_amcsd 0004446
9.4781 8.6180 5.2449 90 107.570 90 C2/c
atom        x      y      z occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
NaM2        0 .30029    .25      .0114  .0143  .0076  .0094       0 -.0008       0
AlM1        0 .90369    .25 .74 .00494  .0050  .0047  .0050       0  .0012       0
Fe3+M1      0 .90369    .25 .26 .00494  .0050  .0047  .0050       0  .0012       0
SiT    .29055 .09232 .22978     .00443  .0042  .0046  .0045 -.00024 .00125 -.00023
O1     .11032 .07663  .1303      .0063  .0046  .0069  .0070   .0001  .0014  -.0001
O2     .36029 .26139  .2952      .0078  .0094  .0052  .0085  -.0019  .0027  -.0007
O3     .35324 .00755  .0075      .0068  .0062  .0085  .0057   .0001  .0019  -.0021
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Aegirine
Download hom/aegirine.pdf
Nestola F, Tribaudino M, Ballaran T B, Liebske C, Bruno M
Download am/vol92/AM92_1492.pdf
American Mineralogist 92 (2007) 1492-1501
The crystal structures of pyroxenes along the jadeite - hedenbergite and
jadeite - aegirine joins
Locality: synthetic
Sample: Jd35Ae65
_database_code_amcsd 0004447
9.5663 8.7040 5.2733 90 107.600 90 C2/c
atom        x      y      z occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
NaM2        0 .29844    .25      .0118  .0140  .0095  .0086       0 -.0014       0
AlM1        0 .90134    .25 .35 .00542  .0053  .0053  .0054       0 .00117       0
Fe3+M1      0 .90134    .25 .65 .00542  .0053  .0053  .0054       0 .00117       0
SiT    .29075 .09083 .23362     .00500  .0046  .0053  .0051 -.00007 .00150 -.00021
O1     .11233 .07785  .1345      .0078  .0052  .0086  .0094   .0006  .0018  -.0002
O2     .35929 .25862  .2992      .0096  .0118  .0061  .0109  -.0020  .0033  -.0010
O3     .35289 .00802  .0111      .0078  .0065  .0104  .0064   .0008  .0018  -.0021
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Aegirine
Download hom/aegirine.pdf
Nestola F, Tribaudino M, Ballaran T B, Liebske C, Bruno M
Download am/vol92/AM92_1492.pdf
American Mineralogist 92 (2007) 1492-1501
The crystal structures of pyroxenes along the jadeite - hedenbergite and
jadeite - aegirine joins
Locality: synthetic
Sample: Jd0Ae100
_database_code_amcsd 0004448
9.6623 8.8000 5.2956 90 107.579 90 C2/c
atom        x      y      z  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3)  U(2,3)
NaM2        0  .2961    .25 .0116  .0132  .0125  .0062      0 -.0031   .0000
Fe3+M1      0 .89921    .25 .0049  .0052  .0046  .0051      0 .00039       0
SiT    .29115 .08942 .23765 .0049  .0046  .0047  .0054 -.0006  .0006 -.00022
O1      .1146  .0789  .1393 .0067  .0052  .0080  .0070 -.0001  .0006   .0011
O2      .3591  .2556  .3032 .0097  .0107  .0063  .0125 -.0033  .0033  -.0014
O3      .3526  .0080  .0146 .0079  .0068  .0107  .0063   .000  .0009  -.0029
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Jadeite
Download hom/jadeite.pdf
Nestola F, Tribaudino M, Ballaran T B, Liebske C, Bruno M
Download am/vol92/AM92_1492.pdf
American Mineralogist 92 (2007) 1492-1501
The crystal structures of pyroxenes along the jadeite - hedenbergite and
jadeite - aegirine joins
Locality: synthetic
Sample: Jd53Hd47
_database_code_amcsd 0004449
9.6031 8.7735 5.2656 90 106.725 90 C2/c
atom        x      y      z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
NaM2        0 .30094    .25 .53 .0124  .0165  .0093  .0090      0 -.0001      0
CaM2        0 .30094    .25 .47 .0124  .0165  .0093  .0090      0 -.0001      0
FeM2'       0   .257    .25 .03  .007
AlM1        0 .90504    .25 .52 .0074  .0075  .0080  .0065      0  .0019      0
Fe2+M1      0 .90504    .25 .48 .0074  .0075  .0080  .0065      0  .0019      0
SiT    .28845 .09209 .22982     .0066  .0068  .0077  .0056  .0003  .0025 -.0011
O1      .1126  .0808  .1366     .0143  .0069  .0191  .0168  .0024  .0030 -.0046
O2      .3600  .2554  .3079     .0131  .0190  .0095  .0102 -.0004  .0032 -.0012
O3      .3518  .0133  .0013     .0098  .0090  .0128  .0080  .0010  .0033 -.0022
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Hedenbergite
Download hom/hedenbergite.pdf
Nestola F, Tribaudino M, Ballaran T B, Liebske C, Bruno M
Download am/vol92/AM92_1492.pdf
American Mineralogist 92 (2007) 1492-1501
The crystal structures of pyroxenes along the jadeite - hedenbergite and
jadeite - aegirine joins
Locality: synthetic
Sample: Jd24Hde76
_database_code_amcsd 0004450
9.7340 8.9103 5.2682 90 105.904 90 C2/c
atom        x      y      z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
NaM2        0 .30061    .25 .24 .0114  .0137  .0090  .0092      0 -.0005      0
CaM2        0 .30061    .25 .76 .0114  .0137  .0090  .0092      0 -.0005      0
AlM1        0 .90603    .25 .24 .0075  .0074  .0073  .0071      0  .0009      0
Fe2+M1      0 .90603    .25 .76 .0075  .0074  .0073  .0071      0  .0009      0
SiT    .28782 .09199  .2317     .0069  .0064  .0082  .0060  .0002  .0017 -.0006
O1      .1165  .0853  .1451     .0142  .0095  .0203  .0129  .0016  .0031 -.0028
O2      .3609  .2510  .3166     .0136  .0201  .0091  .0112 -.0007  .0035 -.0006
O3      .3510  .0160 -.0016     .0099  .0094  .0128  .0076  .0002  .0026 -.0027
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Hedenbergite
Download hom/hedenbergite.pdf
Nestola F, Tribaudino M, Ballaran T B, Liebske C, Bruno M
Download am/vol92/AM92_1492.pdf
American Mineralogist 92 (2007) 1492-1501
The crystal structures of pyroxenes along the jadeite - hedenbergite and
jadeite - aegirine joins
Locality: synthetic
Sample: Jd0Hd100
_database_code_amcsd 0004451
9.8447 9.0234 5.2509 90 104.862 90 C2/c
atom        x      y      z occ   Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
CaM2        0 .30034    .25 .99 .00873  .0104  .0073  .0073      0  .0001      0
FeM2'       0   .242    .25 .01  .0065
Fe2+M1      0 .90741    .25     .00635  .0067  .0058  .0063      0  .0011      0
SiT    .28786 .09244 .23259      .0050  .0050  .0052  .0048 -.0002  .0012 -.0004
O1      .1194  .0901  .1519      .0074  .0056  .0093  .0072  .0001  .0016  .0000
O2      .3630  .2465  .3237      .0097  .0122  .0068  .0096  .0029  .0019 -.0010
O3      .3502  .0198 -.0066      .0079  .0067  .0100  .0070 -.0001  .0017 -.0024
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Melanophlogite
Download hom/melanophlogite.pdf
Tribaudino M, Artoni A, Mavris C, Bersani D, Lottici P P, Belletti D
 
American Mineralogist 93 (2008) 88-94
Single-crystal X-ray and Raman investigation on melanophlogite from Varano
Marchesi (Parma, Italy)
Locality: Case Montanini, Varano Marchesi, Parma, Italy
_database_code_amcsd 0004493
13.399 13.399 13.399 90 90 90 Pm3n
atom        x      y      z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Si1         0 .31079 .11425     .0339  .0427  .0243  .0348      0      0 -.0066
Si2    .18264 .18264 .18264     .0306  .0306  .0306  .0306 -.0048 -.0048 -.0048
Si3       .25      0     .5     .0209  .0177  .0225  .0225      0      0      0
O1     .09616 .24660 .13592     .0708  .0629  .0828  .0667  .0319 -.0101  .0123
O2          0 .40601 .18121     .0895  .1690  .0387  .0609      0      0 -.0309
O3     .34414      0      0     .0406  .0350  .0352  .0515      0      0      0
O4        .25    .25    .25      .090  .0904  .0904  .0904 -.0370 -.0370 -.0370
CH4-5       0      0      0 .71  .082   .082   .082   .082      0      0      0
CH4-56     .5      0    .25 .91  .303   .368   .368   .174      0      0      0
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Vesuvianite
Download hom/vesuvianite.pdf
Pavese A, Prencipe M, Tribaudino M
Download cm/vol36/CM36_1029.pdf
The Canadian Mineralogist 36 (1998) 1029-1037
X-ray and neutron single-crystal study of P4/n vesuvianite
Sample: neutron
_database_code_amcsd 0005551
15.532 15.532 11.821 90 90 90 *P4/n
-.25 .25 0
atom      x     y      z occ  Uiso
Si1a    .25   .75      0     .0066
Si1b    .75   .25     .5     .0087
Si2a  .6801 .4604  .1295     .0055
Si2b  .4590 .6803  .3710     .0039
Si3a  .3492 .4164  .1358     .0076
Si3b  .4163 .3495  .3639     .0081
Ca1     .75   .25  .2520      .012
Ca2a  .5434 .3106  .1205     .0057
Ca2b  .3108 .5437  .3807     .0086
Ca3a  .6018 .6816  .1129      .019
Ca3b  .6819 .6013  .3872     .0178
Ca4a    .25   .25  .3523 .72 .0170
Ca4b    .25   .25 .15040 .28 .0170
AlM1a    .5    .5      0     .0127
AlM1b    .5    .5     .5     .0127
AlM2a .3888 .6210  .1258 .75 .0068
MgM2a .3888 .6210  .1258 .23 .0068
FeM2a .3888 .6210  .1258 .02 .0068
AlM2b .6208 .3872  .3743 .73 .0068
MgM2b .6208 .3872  .3743 .25 .0068
FeM2b .6208 .3872  .3743 .02 .0068
FeM3a   .25   .25  .0329 .70 .0159
FeM3b   .25   .25  .4691 .30 .0159
H10a    .75   .75  .2133       .21
H10b    .75   .75  .4448       .21
H10c    .75   .75  .2841       .21
H11a  .4961 .5603  .2179       .26
H11b  .5606 .4972  .2825       .26
O1a   .2791 .6727  .0845     .0083
O1b   .6728 .2800  .4146     .0049
O2a   .6594 .3824  .2215     .0067
O2b   .3828 .6604  .2776     .0088
O3a   .4517 .7221  .0763     .0076
O3b   .7225 .4523  .4243     .0064
O4a   .6065 .4382  .0311     .0075
O4b   .4374 .6066  .4710     .0061
O5a   .3294 .5143  .1785     .0095
O5b   .5146 .3297  .3222     .0079
O6a   .2712 .3796  .0597     .0124
O6b   .3802 .2714  .4405     .0108
O7a   .6726 .5555  .1780     .0075
O7b   .5550 .6734  .3202     .0097
O8a   .4386 .4092  .0657     .0065
O8b   .4092 .4394  .4328     .0079
O9    .3550 .3553  .2485     .0069
Oh10a   .75   .75  .1330      .011
Oh10b   .75   .75  .3645      .011
Oh11a .4961 .5603  .1375     .0077
Oh11b .5606 .4972  .3628     .0091
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Vesuvianite
Download hom/vesuvianite.pdf
Pavese A, Prencipe M, Tribaudino M
Download cm/vol36/CM36_1029.pdf
The Canadian Mineralogist 36 (1998) 1029-1037
X-ray and neutron single-crystal study of P4/n vesuvianite
Sample: X-ray
_database_code_amcsd 0005552
15.532 15.532 11.821 90 90 90 *P4/n
-.25 .25 0
atom      x     y     z occ  Uiso
Si1a    .25   .75     0     .0056
Si1b    .75   .25    .5     .0042
Si2a  .6814 .4602 .1303     .0058
Si2b  .4584 .6796 .3728     .0047
Si3a  .3488 .4129 .1342     .0065
Si3b  .4196 .3496 .3633     .0056
Ca1     .75   .25 .2498     .0077
Ca2a  .5453 .3117 .1195     .0069
Ca2b  .3100 .5429 .3789     .0075
Ca3a  .5992 .6784 .1212     .0111
Ca3b  .6853 .6041 .3959     .0127
Ca4a    .25   .25 .3504 .85 .0080
Ca4b    .25   .25  .153 .15 .0080
AlM1a    .5    .5     0     .0056
AlM1b    .5    .5    .5     .0056
AlM2a .3865 .6199 .1258 .75 .0029
MgM2a .3865 .6199 .1258 .23 .0029
FeM2a .3865 .6199 .1258 .02 .0029
AlM2b .6228 .3893 .3730 .73 .0029
MgM2b .6228 .3893 .3730 .25 .0029
FeM2b .6228 .3893 .3730 .02 .0029
FeM3a   .25   .25 .0315 .85 .0117
FeM3b   .25   .25  .463 .15 .0117
O1a   .2785 .6725 .0856      .008
O1b   .6733 .2814 .4152      .006
O2a   .6619 .3840 .2231     .0053
O2b   .3819 .6576 .2822      .009
O3a   .4523 .7222 .0759      .008
O3b   .7224 .4514 .4251      .007
O4a   .6063 .4391 .0332      .008
O4b   .4374 .6054 .4724     .0074
O5a   .3273 .5105 .1775     .0089
O5b   .5179 .3315 .3196     .0075
O6a   .2719 .3753 .0573      .010
O6b   .3847 .2715 .4379      .011
O7a   .6755 .5562 .1825      .010
O7b   .5560 .6702 .3261     .0073
O8a   .4398 .4079 .0650      .008
O8b   .4092 .4391 .4314      .009
O9    .3582 .3515 .2494     .0075
OH10a   .75   .75 .1275      .008
OH10b   .75   .75 .3569      .012
OH11a .4953 .5600 .1367     .0085
OH11b .5629 .4962 .3649     .0094
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Diopside
Download hom/diopside.pdf
Prencipe M, Tribaudino M, Pavese A, Hoser A, Reehuis M
Download cm/vol38/CM38_183.pdf
The Canadian Mineralogist 38 (2000) 183-189
A single-crystal neutron-diffraction investigation of diopside at 10 K
_database_code_amcsd 0005645
9.735 8.898 5.242 90 105.72 90 C2/c
atom     x     y     z Biso
Ca2      0 .3020   .25  .26
Mg1      0 .9085   .25  .11
Si   .2865 .0936 .2293  .08
O1   .1155 .0880 .1425  .13
O2   .3612 .2504 .3193  .18
O3   .3510 .0180 .9946  .18
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Spodumene
Download hom/spodumene.pdf
Tribaudino M, Nestola F, Prencipe M, Rundlof H
Download cm/vol41/CM41_521.pdf
The Canadian Mineralogist 41 (2003) 521-527
A single-crystal neutron-diffraction investigation of spodumene at 54 K
Sample: T = 54 K, neutron radiation
_database_code_amcsd 0005836
9.504 8.371 5.204 90 110.33 90 C2/c
atom      x      y     z   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
Li        0  .2735   .25  .0107   .012   .010   .010       0   .005       0
Al        0  .9070   .25  .0031  .0021  .0040  .0031       0  .0009       0
Si    .2939  .0937 .2573  .0027  .0004  .0042  .0037   .0001  .0011  -.0001
O1    .1097 .08265 .1413  .0036  .0009  .0058  .0043   .0003  .0012   .0003
O2   .36461  .2674 .3001  .0043  .0024  .0054  .0059  -.0006  .0023  -.0001
O3   .35656 -.0146 .0609  .0044  .0017  .0073  .0042   .0001  .0012  -.0015
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Spodumene
Download hom/spodumene.pdf
Tribaudino M, Nestola F, Prencipe M, Rundlof H
Download cm/vol41/CM41_521.pdf
The Canadian Mineralogist 41 (2003) 521-527
A single-crystal neutron-diffraction investigation of spodumene at 54 K
Sample: T = 298 K, X-ray radiation
_database_code_amcsd 0005837
9.479 8.403 5.223 90 110.14 90 C2/c
atom      x       y      z   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
Li        0   .2741    .25  .0164  .0158  .0152  .0181       0  .0055       0
Al        0  .90661    .25 .00457 .00411 .00444 .00494       0 .00129       0
Si   .29410  .09345 .25609 .00434 .00370 .00473 .00439 -.00062 .00115 -.00022
O1   .10972  .08233 .14057 .00532 .00383 .00626 .00536 -.00037 .00092  .00015
O2   .36476  .26704 .30051 .00812 .00823 .00595  .0107 -.00288 .00391 -.00093
O3   .35664 -.01332 .05854 .00802 .00587  .0118 .00599  .00063 .00150 -.00316
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Diopside
Download hom/diopside.pdf
Tribaudino M, Nestola F, Meneghini C
Download cm/vol43/CM43_1411.pdf
The Canadian Mineralogist 43 (2005) 1411-1421
Rietveld refinement of clinopyroxenes with intermediate
Ca-content along the join diopside-enstatite
Locality: synthetic
Sample: Di80En20
_database_code_amcsd 0006051
9.7323 8.9152 5.2464 90 106.357 90 C2/c
atom      x      y      z occ Biso
Ca2       0 .29449    .25 .80  .52
Mg2       0 .29449    .25 .20  .52
Mg1       0 .90659    .25      .47
Si   .28784 .09317 .23405      .39
O1   .11572 .08818  .1442      .51
O2   .36344 .24968  .3269      .41
O3   .34865 .01881 -.0021      .65
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Diopside
Download hom/diopside.pdf
Tribaudino M, Nestola F, Meneghini C
Download cm/vol43/CM43_1411.pdf
The Canadian Mineralogist 43 (2005) 1411-1421
Rietveld refinement of clinopyroxenes with intermediate
Ca-content along the join diopside-enstatite
Locality: synthetic
Sample: Di70En30
_database_code_amcsd 0006052
9.7264 8.9133 5.2485 90 106.742 90 C2/c
atom      x      y     z occ Biso
Ca2       0  .2885   .25 .70 1.14
Mg2       0  .2885   .25 .30 1.14
Mg1       0  .9053   .25      .47
Si   .28957 .09409 .2387      .39
O1   .11741 .08969 .1468      .51
O2   .36522 .25009 .3337      .35
O3   .35009 .01811 .0030      .65
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Diopside
Download hom/diopside.pdf
Tribaudino M, Nestola F, Meneghini C
Download cm/vol43/CM43_1411.pdf
The Canadian Mineralogist 43 (2005) 1411-1421
Rietveld refinement of clinopyroxenes with intermediate
Ca-content along the join diopside-enstatite
Locality: synthetic
Sample: Di59En41
_database_code_amcsd 0006053
9.7110 8.8935 5.2452 90 107.278 90 C2/c
atom     x      y     z occ Biso
Ca2      0  .2839   .25 .59 1.33
Mg2      0  .2839   .25 .41 1.33
Mg1      0  .9068   .25      .47
Si   .2902  .0929 .2444      .39
O1   .1168 .08933 .1445      .51
O2   .3665 .25055 .3301      .73
O3   .3514 .02117 .0077      .65
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Enstatite
Download hom/enstatite.pdf
Tribaudino M, Nestola F, Meneghini C
Download cm/vol43/CM43_1411.pdf
The Canadian Mineralogist 43 (2005) 1411-1421
Rietveld refinement of clinopyroxenes with intermediate
Ca-content along the join diopside-enstatite
Locality: synthetic
Sample: Di40En60
_database_code_amcsd 0006054
9.7042 8.8805 5.2423 90 108.084 90 P2_1/c
atom     x     y     z occ Biso
Ca2  .2546 .0244 .2309 .40  .66
Mg2  .2546 .0244 .2309 .60  .66
Mg1  .2515 .6543 .2411      .62
SiA  .0411 .3449 .2730      .58
O1A  .8655 .3360 .1522      .51
O2A  .1091 .5109 .3087      .80
O3A  .0933 .2675 .5723     1.31
SiB  .5522 .8429 .2484      .67
O1B  .3771 .8372 .1442      .79
O2B  .6314 .9937 .3826     1.32
O3B  .6009 .7116 .4836     1.12
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Enstatite
Download hom/enstatite.pdf
Tribaudino M, Nestola F, Meneghini C
Download cm/vol43/CM43_1411.pdf
The Canadian Mineralogist 43 (2005) 1411-1421
Rietveld refinement of clinopyroxenes with intermediate
Ca-content along the join diopside-enstatite
Locality: synthetic
Sample: Di20En80
_database_code_amcsd 0006055
9.6655 8.8534 5.2138 90 108.349 90 P2_1/c
atom     x     y     z occ Biso
Ca2  .2555 .0186 .2279 .20  .34
Mg2  .2555 .0186 .2279 .80  .34
Mg1  .2517 .6536 .2275      .62
SiA  .0420 .3418 .2842      .58
O1A  .8664 .3392 .1764      .51
O2A  .1159 .5042 .3169      .80
O3A  .1038 .2746 .5941     1.31
SiB  .5498 .8392 .2301      .67
O1B  .3738 .8356 .1305      .79
O2B  .6332 .9847 .3803     1.32
O3B  .6067 .7064 .4677     1.12
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Diopside
Download hom/diopside.pdf
Tribaudino M, Molin G M, Bruno E
 
European Journal of Mineralogy 6 (1994) 77-86
Effect of Al on enstatite solubility in CMAS clinopyroxenes:
2 - Crystal chemical considerations
Sample: Di75En10CaTs15
_database_code_amcsd 0006528
9.707 8.863 5.267 90 106.27 90 C2/c
atom       x     y     z  occ Biso
CaM2       0 .3011   .25  .45 1.16
MgM2       0 .3011   .25  .05 1.16
MgM1       0 .9079   .25  .86  .81
AlM1       0 .9079   .25  .14  .81
AlT    .2875 .0934 .2294 .075  .78
SiT    .2875 .0934 .2294 .925  .78
O1     .1143 .0866 .1390       .98
O2     .3627 .2523 .3212      1.19
O3     .3518 .0184 .9947      1.03
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Diopside
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Tribaudino M, Molin G M, Bruno E
 
European Journal of Mineralogy 6 (1994) 77-86
Effect of Al on enstatite solubility in CMAS clinopyroxenes:
2 - Crystal chemical considerations
Sample: Di75En10CaTs15, split M2 atom model
_database_code_amcsd 0006529
9.707 8.863 5.267 90 106.27 90 C2/c
atom       x     y     z  occ Biso
CaM2       0 .3021   .25   .5 1.02
MgM2'      0 .2620   .25   .1 2.71
CaM2'      0 .2620   .25   .4 2.71
MgM1       0 .9079   .25  .86  .81
AlM1       0 .9079   .25  .14  .81
AlT    .2875 .0934 .2294 .075  .78
SiT    .2875 .0934 .2294 .925  .78
O1     .1143 .0866 .1390       .98
O2     .3627 .2523 .3212      1.19
O3     .3518 .0184 .9947      1.03
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Diopside
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Tribaudino M, Molin G M, Bruno E
 
European Journal of Mineralogy 6 (1994) 77-86
Effect of Al on enstatite solubility in CMAS clinopyroxenes:
2 - Crystal chemical considerations
Sample: Di65En20CaTs15
_database_code_amcsd 0006530
9.700 8.861 5.258 90 106.47 90 C2/c
atom      x     y     z  occ Biso
CaM2      0 .2990   .25   .8 1.19
MgM2      0 .2990   .25   .2 1.19
MgM1      0 .9075   .25  .83  .62
AlM1      0 .9075   .25  .17  .62
AlT   .2884 .0932 .2322 .075  .69
SiT   .2884 .0932 .2322 .925  .69
O1    .1148 .0870 .1398       .88
O2    .3637 .2518 .3253      1.17
O3    .3517 .0194 .9968      1.02
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Diopside
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Tribaudino M, Molin G M, Bruno E
 
European Journal of Mineralogy 6 (1994) 77-86
Effect of Al on enstatite solubility in CMAS clinopyroxenes:
2 - Crystal chemical considerations
Sample: Di65En20CaTs15, split M2 model
_database_code_amcsd 0006531
9.700 8.861 5.258 90 106.47 90 C2/c
atom      x     y     z  occ Biso
CaM2      0 .3013   .25   .5  .89
CaM2'     0 .2623   .25   .3 2.53
MgM2'     0 .2623   .25   .2 2.53
MgM1      0 .9075   .25  .83  .62
AlM1      0 .9075   .25  .17  .62
AlT   .2884 .0932 .2322 .075  .69
SiT   .2884 .0932 .2322 .925  .69
O1    .1148 .0870 .1398       .88
O2    .3637 .2518 .3253      1.17
O3    .3517 .0194 .9968      1.02
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Diopside
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Tribaudino M, Molin G M, Bruno E
 
European Journal of Mineralogy 6 (1994) 77-86
Effect of Al on enstatite solubility in CMAS clinopyroxenes:
2 - Crystal chemical considerations
Sample: Di70CaTs30
_database_code_amcsd 0006532
9.687 8.832 5.268 90 106.18 90 C2/c
atom     x     y     z occ Biso
CaM2     0 .3034   .25      .81
MgM1     0 .9084   .25  .7  .50
AlM1     0 .9084   .25  .3  .50
AlT  .2871 .0939 .2258 .15  .40
SiT  .2871 .0939 .2258 .85  .40
O1   .1124 .0857 .1358      .77
O2   .3622 .2551 .3176      .91
O3   .3526 .0182 .9923      .71
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Diopside
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Tribaudino M
 
European Journal of Mineralogy 8 (1996) 273-279
High-temperature crystal chemistry of C2/c clinopyroxenes along
the join CaMgSi2O6-CaAl2SiO6
Sample: Di70CaTs30 at 25 C
_database_code_amcsd 0006622
9.680 8.828 5.268 90 106.16 90 C2/c
atom     x     y      z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
CaM2     0 .3034    .25      .72  .0120  .0072  .0065      0  .0006      0
MgM1     0 .9083    .25  .7  .41  .0055  .0052  .0043      0  .0007      0
AlM1     0 .9083    .25  .3  .41  .0055  .0052  .0043      0  .0007      0
AlT  .2871 .0939  .2258 .15  .33  .0041  .0043  .0041  .0000  .0012 -.0006
SiT  .2871 .0939  .2258 .85  .33  .0041  .0043  .0041  .0000  .0012 -.0006
O1   .1127 .0857  .1363      .66  .0040  .0106  .0108  .0011  .0028  .0011
O2   .3620 .2552  .3181      .80  .0123  .0091  .0092 -.0007  .0030 -.0014
O3   .3524 .0184 -.0080      .62  .0063  .0092  .0078  .0000  .0019 -.0039
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Diopside
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Tribaudino M
 
European Journal of Mineralogy 8 (1996) 273-279
High-temperature crystal chemistry of C2/c clinopyroxenes along
the join CaMgSi2O6-CaAl2SiO6
Sample: Di70CaTs30 at 300 C
_database_code_amcsd 0006623
9.703 8.863 5.281 90 106.24 90 C2/c
atom     x     y      z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
CaM2     0 .3029    .25     1.26  .0212  .0120  .0118      0  .0000      0
MgM1     0 .9077    .25  .7  .76  .0104  .0097  .0081      0  .0014      0
AlM1     0 .9077    .25  .3  .76  .0104  .0097  .0081      0  .0014      0
AlT  .2871 .0937  .2257 .15  .58  .0070  .0080  .0070 -.0001  .0019 -.0006
SiT  .2871 .0937  .2257 .85  .58  .0070  .0080  .0070 -.0001  .0019 -.0006
O1   .1126 .0853  .1368     1.02  .0066  .0182  .0138  .0008  .0029 -.0009
O2   .3622 .2542  .3166     1.26  .0192  .0131  .0149 -.0027  .0034 -.0013
O3   .3518 .0173 -.0065     1.01  .0096  .0172  .0117  .0051  .0033 -.0047
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Diopside
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Tribaudino M
 
European Journal of Mineralogy 8 (1996) 273-279
High-temperature crystal chemistry of C2/c clinopyroxenes along
the join CaMgSi2O6-CaAl2SiO6
Sample: Di70CaTs30 at 500 C
_database_code_amcsd 0006624
9.717 8.886 5.288 90 106.29 90 C2/c
atom     x     y      z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
CaM2     0 .3027    .25     1.62  .0269  .0155  .0152      0 -.0003      0
MgM1     0 .9074    .25  .7  .98  .0128  .0132  .0106      0  .0021      0
AlM1     0 .9074    .25  .3  .98  .0128  .0132  .0106      0  .0021      0
AlT  .2870 .0935  .2256 .15  .75  .0085  .0104  .0093 -.0003  .0022 -.0009
SiT  .2870 .0935  .2256 .85  .75  .0085  .0104  .0093 -.0003  .0022 -.0009
O1   .1126 .0854  .1361     1.26  .0092  .0219  .0166  .0009  .0036 -.0016
O2   .3619 .2536  .3159     1.62  .0247  .0163  .0198 -.0043  .0048 -.0016
O3   .3515 .0169 -.0063     1.26  .0122  .0207  .0147 -.0002  .0036 -.0058
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Diopside
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Tribaudino M
 
European Journal of Mineralogy 8 (1996) 273-279
High-temperature crystal chemistry of C2/c clinopyroxenes along
the join CaMgSi2O6-CaAl2SiO6
Sample: Di70CaTs30 at 700 C
_database_code_amcsd 0006625
9.733 8.909 5.296 90 106.35 90 C2/c
atom     x     y      z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
CaM2     0 .3026    .25     2.01  .0341  .0190  .0180      0 -.0009      0
MgM1     0 .9071    .25  .7 1.25  .0174  .0160  .0129      0  .0024      0
AlM1     0 .9071    .25  .3 1.25  .0174  .0160  .0129      0  .0024      0
AlT  .2870 .0933  .2256 .15  .93  .0107  .0132  .0110 -.0003  .0026 -.0013
SiT  .2870 .0933  .2256 .85  .93  .0107  .0132  .0110 -.0003  .0026 -.0013
O1   .1130 .0853  .1367     1.48  .0102  .0249  .0206  .0012  .0035 -.0002
O2   .3617 .2528  .3148     1.99  .0307  .0198  .0244 -.0055  .0066 -.0025
O3   .3514 .0159 -.0053     1.54  .0154  .0253  .0177  .0000  .0042 -.0080
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Diopside
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Tribaudino M
 
European Journal of Mineralogy 8 (1996) 273-279
High-temperature crystal chemistry of C2/c clinopyroxenes along
the join CaMgSi2O6-CaAl2SiO6
Sample: Di50CaTs50 at 700 C
Note: coordinates for O3 were altered by the author May, 2003
_database_code_amcsd 0006626
9.697 8.850 5.306 90 106.39 90 C2/c
atom     x     y      z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
CaM2     0 .3040    .25     2.08  .0321  .0214  .0219      0  .0010      0
MgM1     0 .9079    .25  .5 1.40  .0177  .0185  .0161      0  .0032      0
AlM1     0 .9079    .25  .5 1.40  .0177  .0185  .0161      0  .0032      0
AlT  .2872 .0939  .2218 .25 1.16  .0115  .0178  .0142 -.0004  .0023 -.0020
SiT  .2872 .0939  .2218 .75 1.16  .0115  .0178  .0142 -.0004  .0023 -.0020
O1   .1102 .0845  .1319     1.91  .0146  .0301  .0272  .0015  .0046  .0015
O2   .3617 .2552  .3146     2.24  .0341  .0254  .0269 -.0071  .0105 -.0044
O3   .3512 .0145 -.0104     1.78  .0174  .0258  .0239  .0021  .0048 -.0088
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Enstatite
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Tribaudino M, Nestola F
 
European Journal of Mineralogy 14 (2002) 549-555
Average and local structure in P2_1/c clinopyroxenes along the
join diopside-enstatite (CaMgSi2O6-Mg2Si2O6)
Sample: Di15En85 (non-split model)
Note: x-coordinate for SiTA altered by Tribaudino, Sept 2003
_database_code_amcsd 0006929
9.654 8.845 5.203 90 108.37 90 P2_1/c
atom      x      y      z occ Biso
CaM2 .25555 .01762  .2216 .15  .94
MgM2 .25555 .01762  .2216 .85  .94
MgM1 .25081 .65383  .2228     .490
SiTA .04241 .34125 .28688     .392
SiTB .55077 .83805 .23261     .410
O1A   .8665  .3397  .1791      .46
O2A   .1212  .5012  .3221      .57
O3A   .1053  .2751  .6023      .74
O1B   .3745  .8396  .1273      .51
O2B   .6319  .9851  .3825      .83
O3B   .6047  .7006  .4646      .73
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Enstatite
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Tribaudino M, Nestola F
 
European Journal of Mineralogy 14 (2002) 549-555
Average and local structure in P2_1/c clinopyroxenes along the
join diopside-enstatite (CaMgSi2O6-Mg2Si2O6)
Sample: Di15En85 (split model)
_database_code_amcsd 0006930
9.654 8.845 5.203 90 108.37 90 P2_1/c
atom       x      y      z occ Biso
CaM2   .2636  .0395   .238 .15  .65
MgM2   .2535  .0122  .2176 .85  .56
MgM1  .25085 .65377  .2229     .485
SiTA  .04243 .34123 .28681     .390
SiTB  .55078 .83804 .23258     .403
O1A    .8665  .3395  .1792      .46
O2A    .1211  .5012  .3221      .57
O3A*   .1060  .2772  .6070 .85  .52
O3A**  .0996   .258   .566 .15  .52
O1B    .3746  .8395  .1275      .52
O2B*   .6337  .9836  .3878 .85  .50
O2B**  .6121 1.0003   .328 .15  .50
O3B*   .6044  .6977  .4612 .85  .53
O3B**  .6075   .778  -.010 .15  .53
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Enstatite
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Tribaudino M, Nestola F
 
European Journal of Mineralogy 14 (2002) 549-555
Average and local structure in P2_1/c clinopyroxenes along the
join diopside-enstatite (CaMgSi2O6-Mg2Si2O6)
Sample: Di23En77 (non-split model)
_database_code_amcsd 0006931
9.690 8.862 5.229 90 108.31 90 P2_1/c
atom     x     y     z occ Biso
CaM2 .2546 .0222 .2285 .23 1.36
MgM2 .2546 .0222 .2285 .77 1.36
MgM1 .2505 .6539 .2284      .62
SiTA .0415 .3417 .2782      .58
SiTB .5484 .8391 .2348      .67
O1A  .8665 .3396 .1719      .51
O2A  .1183 .5019 .3215      .80
O3A  .1049 .2679 .5874     1.31
O1B  .3727 .8384 .1313      .79
O2B  .6286 .9883 .3714     1.32
O3B  .6048 .7092 .4760     1.12
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Enstatite
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Tribaudino M, Nestola F
 
European Journal of Mineralogy 14 (2002) 549-555
Average and local structure in P2_1/c clinopyroxenes along the
join diopside-enstatite (CaMgSi2O6-Mg2Si2O6)
Sample: Di23En77 (split model)
_database_code_amcsd 0006932
9.690 8.862 5.229 90 108.31 90 P2_1/c
atom      x     y     z occ Biso
CaM2  .2613 .0452  .246 .23   .8
MgM2  .2518 .0127 .2210 .77  .65
MgM1  .2504 .6538 .2283      .63
SiTA  .0415 .3416 .2782      .58
SiTB  .5484 .8391 .2348      .61
O1A   .8665 .3395 .1719      .50
O2A   .1183 .5021 .3220      .81
O3A*  .1052 .2735  .596 .85  .69
O3A**  .103  .244  .548 .15  .69
O1B   .3727 .8384 .1312      .78
O2B*  .6319 .9853  .384 .85  .75
O2B**  .614 1.002  .318 .15  .75
O3B*  .6022 .7042  .468 .85  .64
O3B**  .615  .771  .009 .15  .64
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Enstatite
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Nestola F, Tribaudino M
 
European Journal of Mineralogy 15 (2003) 365-371
The structure of Pbca orthopyroxenes along the join diopside-enstatite (CaMgSi2O6-Mg2Si2O6)
Sample: D4En96
_database_code_amcsd 0006978
18.262 8.826 5.192 90 90 90 Pbca
atom      x      y      z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
CaM2 .37699 .48508  .3610 .04  .64  .0083  .0111  .0052 -.0019 -.0014 -.0010
MgM2 .37699 .48508  .3610 .96  .64  .0083  .0111  .0052 -.0019 -.0014 -.0010
MgM1 .37567 .65400  .8670      .46  .0065  .0070  .0043  .0000 -.0004  .0002
SiTA .27150 .34160 .04923      .36  .0044  .0056  .0036 -.0004  .0004 -.0001
SiTB .47405 .33774 .79770      .37  .0045  .0058  .0036  .0002 -.0002  .0003
O1A  .18335  .3400  .0353      .42  .0042  .0076  .0042  .0001  .0003  .0006
O2A  .31062  .5024  .0437      .55  .0078  .0070  .0059 -.0013 -.0002  .0009
O3A  .30274  .2240  .8283      .57  .0062  .0098  .0055 -.0000  .0001 -.0029
O1B  .56272  .3402  .7996      .47  .0040  .0085  .0054 -.0008 -.0011  .0002
O2B  .43341  .4842  .6915      .62  .0080  .0087  .0070  .0026  .0007  .0021
O3B  .44770  .1973  .6008      .58  .0064  .0104  .0051 -.0011  .0004 -.0028
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Enstatite
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Nestola F, Tribaudino M
 
European Journal of Mineralogy 15 (2003) 365-371
The structure of Pbca orthopyroxenes along the join diopside-enstatite (CaMgSi2O6-Mg2Si2O6)
Sample: D7E93
_database_code_amcsd 0006979
18.268 8.836 5.196 90 90 90 Pbca
atom      x      y      z occ Biso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
CaM2 .37693 .48464 .36224 .07 .837  .0098  .0140  .0081  -.0025 -.0015  -.0014
MgM2 .37693 .48464 .36224 .93 .837  .0098  .0140  .0081  -.0025 -.0015  -.0014
MgM1 .37567 .65402 .86809     .579  .0075  .0079  .0066  -.0000 -.0006   .0004
SiTA .27143 .34156 .04927     .476  .0058  .0062  .0061 -.00044 .00063 -.00026
SiTB .47421 .33784 .79691     .475  .0057  .0064  .0059  .00047 .00005  .00038
O1A  .18336 .33982  .0362     .564  .0054  .0081  .0080   .0001  .0005  -.0003
O2A  .31067 .50190  .0439     .654  .0089  .0069  .0090  -.0019 -.0003   .0012
O3A  .30277 .22461  .8285     .726  .0076  .0113  .0087   .0002  .0010  -.0038
O1B  .56275 .34024  .7990     .582  .0057  .0086  .0077  -.0001 -.0002   .0002
O2B  .43344 .48436  .6920     .803  .0112  .0089  .0104   .0034  .0013   .0021
O3B  .44770 .19840  .5986     .704  .0081  .0112  .0074  -.0008  .0000  -.0027
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Diopside
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Tribaudino M, Nestola F, Ohashi H
 
European Journal of Mineralogy 17 (2005) 297-304
High temperature single crystal investigation in a clinopyroxene of
composition (Na0.5Ca0.5)(Cr0.5Mg0.5)Si2O6
Sample: T = 25 C, 2-theta <= 110
Note: Sample is exactly intermediate between diopside and kosmochlor
_database_code_amcsd 0007093
9.658 8.834 5.263 90 106.46 90 C2/c
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3) U(1,2)  U(1,3)  U(2,3)
NaM2      0 .30199    .25  .5 .01139  .0136  .0084  .0095      0  -.0011       0
CaM2      0 .30199    .25  .5 .01139  .0136  .0084  .0095      0  -.0011       0
CrM1      0  .9065    .25  .5 .00584  .0060  .0077  .0056      0  .00097       0
MgM1      0  .9065    .25  .5 .00584  .0060  .0077  .0056      0  .00097       0
Si   .28874 .09238 .23022     .00556  .0060  .0087  .0065 .00016 -.00134 -.00023
O1   .11426 .08212  .1390      .0081   .006   .012   .011  .0002   .0011  -.0010
O2   .36006 .25412  .3103      .0096   .014   .011   .008 -.0024   .0025  -.0011
O3   .35172 .01425  .9999      .0082   .007   .007   .008  .0002   .0020  -.0023
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Diopside
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Tribaudino M, Nestola F, Ohashi H
 
European Journal of Mineralogy 17 (2005) 297-304
High temperature single crystal investigation in a clinopyroxene of
composition (Na0.5Ca0.5)(Cr0.5Mg0.5)Si2O6
Sample: T = 25 C, 2-theta <= 50
Note: Sample is exactly intermediate between diopside and kosmochlor
Note: a cell edge corrected
_database_code_amcsd 0007094
9.656 8.833 5.262 90 106.5281 90 C2/c
atom     x      y     z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2)  U(1,3)  U(2,3)
NaM2     0  .3015   .25  .5 .0137  .0173   .011   .011      0   .0007       0
CaM2     0  .3015   .25  .5 .0137  .0173   .011   .011      0   .0007       0
CrM1     0  .9065   .25  .5 .0065  .0060  .0077  .0056      0   .0013       0
MgM1     0  .9065   .25  .5 .0065  .0060  .0077  .0056      0   .0013       0
Si   .2889  .0924 .2301     .0070  .0060  .0087  .0065 -.0002   .0023  -.0007
O1   .1141  .0818 .1383     .0093   .006   .012   .011   .001    .003   -.000
O2   .3602  .2542 .3102     .0108   .014   .011   .008  -.003    .004   -.001
O3   .3520  .0138 .0006     .0082   .007   .007   .008   .000    .003   -.002
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Diopside
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Tribaudino M, Nestola F, Ohashi H
 
European Journal of Mineralogy 17 (2005) 297-304
High temperature single crystal investigation in a clinopyroxene of
composition (Na0.5Ca0.5)(Cr0.5Mg0.5)Si2O6
Sample: T = 200 C, 2-theta <= 50
Note: Sample is exactly intermediate between diopside and kosmochlor
_database_code_amcsd 0007095
9.666 8.850 5.267 90 106.53 90 C2/c
atom     x      y     z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2)  U(1,3)  U(2,3)
NaM2     0  .3014   .25  .5 .0188   .023   .016   .015      0    .000       0
CaM2     0  .3014   .25  .5 .0188   .023   .016   .015      0    .000       0
CrM1     0  .9064   .25  .5 .0093  .0084   .012  .0074      0   .0015       0
MgM1     0  .9064   .25  .5 .0093  .0084   .012  .0074      0   .0015       0
Si   .2888  .0922 .2304     .0082  .0084  .0097  .0068  .0005   .0029  -.0009
O1   .1144  .0807 .1396     .0124   .008   .019   .011  -.001    .003    .000
O2   .3603  .2535 .3088      .015   .016   .015   .014  -.003    .006   -.003
O3   .3515  .0125 .0012     .0112   .012   .013   .010  -.001    .005   -.003
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Diopside
Download hom/diopside.pdf
Tribaudino M, Nestola F, Ohashi H
 
European Journal of Mineralogy 17 (2005) 297-304
High temperature single crystal investigation in a clinopyroxene of
composition (Na0.5Ca0.5)(Cr0.5Mg0.5)Si2O6
Sample: T = 400 C, 2-theta <= 50
Note: Sample is exactly intermediate between diopside and kosmochlor
_database_code_amcsd 0007096
9.682 8.874 5.274 90 106.53 90 C2/c
atom     x      y     z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2)  U(1,3)  U(2,3)
NaM2     0  .3015   .25  .5 .0254   .033   .019   .019      0    .000       0
CaM2     0  .3015   .25  .5 .0254   .033   .019   .019      0    .000       0
CrM1     0  .9061   .25  .5 .0122   .013   .013   .010      0   .0027       0
MgM1     0  .9061   .25  .5 .0122   .013   .013   .010      0   .0027       0
Si   .2886  .0922 .2302     .0111  .0108   .013  .0098 -.0003   .0036  -.0012
O1   .1146  .0812 .1393      .015   .011   .021   .014  -.002    .004   -.001
O2   .3595  .2524 .3077      .020   .025   .018   .017  -.005    .006   -.003
O3   .3507  .0124 .0008      .014   .014   .018   .014   .002    .007   -.007
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Diopside
Download hom/diopside.pdf
Tribaudino M, Nestola F, Ohashi H
 
European Journal of Mineralogy 17 (2005) 297-304
High temperature single crystal investigation in a clinopyroxene of
composition (Na0.5Ca0.5)(Cr0.5Mg0.5)Si2O6
Sample: T = 620 C, 2-theta <= 50
Note: Sample is exactly intermediate between diopside and kosmochlor
_database_code_amcsd 0007097
9.697 8.902 5.282 90 106.54 90 C2/c
atom     x      y     z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2)  U(1,3)  U(2,3)
NaM2     0  .3013   .25  .5 .0312   .039   .024   .024      0   -.000       0
CaM2     0  .3013   .25  .5 .0312   .039   .024   .024      0   -.000       0
CrM1     0  .9057   .25  .5 .0149   .015   .015  .0137      0   .0028       0
MgM1     0  .9057   .25  .5 .0149   .015   .015  .0137      0   .0028       0
Si   .2883  .0920 .2298     .0136  .0134   .016  .0116 -.0003   .0047  -.0001
O1   .1141  .0808 .1386      .018   .014   .026   .016  -.002    .005   -.000
O2   .3589  .2522 .3071      .025   .033   .018   .025  -.006    .010   -.004
O3   .3505  .0117 .0009      .019   .020   .021   .015   .001    .006   -.006
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Sanidine
Download hom/sanidine.pdf
Menna M, Tribaudino M, Renzulli A
 
European Journal of Mineralogy 20 (2008) 183-190
Al-Si order and spinodal decomposition texture of sanidine from igneous clasts of Stromboli
(southern Italy): insights into the timing between the emplacement of a shallow basic sheet
intrusion and the eruption of related ejecta
Locality: Stromboli volcano, southern Italy
_database_code_amcsd 0007255
8.437 13.003 7.172 90 116.10 90 C2/m
atom      x      y      z  occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
K    .28083      0 .13594  .65 .0288  .0205  .0339  .0294      0  .0087      0
Na   .28083      0 .13594  .31 .0288  .0205  .0339  .0294      0  .0087      0
Ca   .28083      0 .13594  .04 .0288  .0205  .0339  .0294      0  .0087      0
Al1  .00862 .18258 .22368 .301 .0163  .0228  .0149  .0127 -.0025  .0092 -.0007
Si1  .00862 .18258 .22368 .699 .0163  .0228  .0149  .0127 -.0025  .0092 -.0007
Si2  .70336 .11725 .34380 .781 .0158  .0221  .0107  .0151 -.0003  .0088 -.0002
Al2  .70336 .11725 .34380 .219 .0158  .0221  .0107  .0151 -.0003  .0088 -.0002
OA1       0 .14359      0      .0272  .0430  .0244  .0181      0  .0170      0
OA2  .62437      0 .28580      .0286  .0348  .0142  .0300      0  .0082      0
OB   .82598 .14117 .22565      .0302  .0302  .0363  .0305 -.0032  .0193  .0019
OC   .02924 .30826 .25606      .0246  .0284  .0189  .0256 -.0019  .0111 -.0013
OD   .18349 .12602 .40508      .0256  .0316  .0235  .0181  .0008  .0077  .0022
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Total number of retrieved datasets: 76
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