Feldspar
Benna P, Bruno E
American Mineralogist 88 (2003) 1532-1541
Single-crystal in situ high-temperature structural investigation of the I-1 - I2/c phase
transition in Ca0.2Sr0.8Al2Si2O8 feldspar
T = 500 C
_database_code_amcsd 0003180
8.379 12.971 14.278 90.11 115.48 90.06 I-1
atom         x      y     z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ca(0)    .2715 -.0017 .0661  .2 .037   .019   .046   .043  -.001   .011  -.007
Sr(0)    .2715 -.0017 .0661  .8 .037   .019   .046   .043  -.001   .011  -.007
Ca(z)    .2714  .0024 .5660  .2 .037   .020   .046   .042  -.001   .011   .001
Sr(z)    .2714  .0024 .5660  .8 .037   .020   .046   .042  -.001   .011   .001
SiT1(00) .0073  .1746 .1082     .019   .020   .020   .021  -.005   .012  -.003
AlT1(0z) .0027  .1777 .6163     .019   .018   .020   .021  -.004   .011  -.002
AlT1(m0) .0025  .8218 .1166     .019   .020   .019   .021   .003   .012   .000
SiT1(mz) .0075  .8250 .6085     .019   .018   .021   .019   .003   .010  -.001
AlT2(00) .6950  .1207 .1706     .018   .016   .018   .022  -.002   .009  -.002
SiT2(0z) .6853  .1130 .6719     .018   .017   .014   .025  -.003   .010  -.003
SiT2(m0) .6858  .8867 .1724     .018   .017   .015   .024   .001   .010  -.001
AlT2(mz) .6948  .8792 .6707     .018   .017   .017   .023  -.001   .010  -.002
OA(10)   .0047  .1294 .0004     .027   .036   .031   .019  -.001   .017  -.004
OA(1z)   .9950  .1296 .4992     .028   .035   .031   .021   .002   .016   .001
OA(20)   .5919  .0002 .1423     .028   .023   .015   .045   .000   .014  -.001
OA(2z)   .5917      0 .6425     .027   .019   .014   .045  -.003   .011  -.003
OB(00)   .8295  .1261 .1062     .035   .029   .039   .045  -.009   .025  -.005
OB(0z)   .8092  .1267 .6117     .036   .029   .040   .051  -.008   .027   .001
OB(m0)   .8094  .8723 .1130     .037   .031   .039   .050   .011   .026  -.004
OB(mz)   .8291  .8730 .6065     .036   .034   .040   .049   .011   .032   .001
OC(00)   .0136  .2972 .1190     .033   .031   .023   .043  -.008   .014  -.006
OC(0z)   .0189  .3096 .6317     .032   .029   .023   .045  -.008   .016  -.007
OC(m0)   .0174  .6896 .1302     .032   .028   .022   .047   .005   .017   .002
OC(mz)   .0132  .7020 .6176     .034   .033   .025   .041   .007   .015   .004
OD(00)   .1870  .1246 .1958     .038   .037   .045   .028   .005   .010   .004
OD(0z)   .1965  .1187 .7026     .034   .026   .041   .024  -.001   .002   .000
OD(m0)   .1974  .8803 .2038     .034   .032   .038   .025  -.004   .005  -.007
OD(mz)   .1867  .8743 .6960     .036   .027   .048   .025  -.003   .003  -.008