American Mineralogist Crystal Structure Database

3 matching records for this search.

Rankamaite
Download hom/rankamaite.pdf
Atencio D, Contreira R R, Mills S J, Coutinho J M V,
Honorato S B, Ayala A P, Ellena J, De Andrade M B
 
American Mineralogist 96 (2011) 1455-1460
Rankamaite from the Urubu pegmatite, Itinga, Minas Gerais,
Brazil: Crystal chemistry and Rietveld refinement
Note: Identification of OH not reported
Locality: Urubu pegmatite, Itinga, Minas Gerais, Brazil
_database_code_amcsd 0018556
17.224 17.687 3.9361 90 90 90 C222
atom      x      y  z occ Biso
K1    .8322      0 .5 .63  4.5
Na2   .4990      0 .5 .43  4.5
Na3     .25    .25 .5 .68  4.5
Ta1       0      0  0 .71    2
Nb1       0      0  0 .29    2
Ta2       0 .67188  0 .72    2
Nb2       0 .67188  0 .28    2
Ta3  .18037 .39406  0 .85    2
Al3  .18037 .39406  0 .15    2
Ta4  .11190 .82225  0 .89    2
Nb4  .11190 .82225  0 .11    2
O1    .3235  .1061 .5        1
O2    .6165  .6777 .5        1
O3    .1376  .2915  0        1
O4    .0711  .5780  0        1
O5    .2790  .3377  0        1
O6    .1103  .9442  0        1
O7        0  .3334 .5        1
O8        0  .2011  0        1
O9    .7108      0  0        1
O10       0      0 .5        1
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Mejillonesite
 
Atencio D, Chukanov N V, Nestola F, Witzke T, Coutinho J M V,
Zadov A E, Contreira R R, Farber G
 
American Mineralogist 97 (2012) 19-25
Mejillonesite, a new acid sodium, magnesium phosphate mineral,
from Mejillones, Antofagasta, Chile
Locality: Mejillones, Antofagasta, Chile
_database_code_amcsd 0018764
16.295 13.009 8.434 90 90 90 Pbca
atom     x     y     z  Uiso
Na   .0322 .8839 .9341 .0218
Mg1  .2434 .8832 .9481 .0128
Mg2  .2437 .8881 .3390 .0127
P1   .1382 .0534 .1427 .0097
P2   .1432 .7876 .6463 .0100
O11  .1933 .0297 .2903 .0154
O12  .1180 .1703 .1361 .0165
O13  .1870 .0243 .9902 .0180
O14  .0585 .9910 .1507 .0225
O21  .1930 .8130 .1433 .0180
O22  .1599 .6425 .0080 .0222
O23  .1502 .8420 .8054 .0206
OH24 .0475 .7451 .1263 .0238
Ow   .9897 .8748 .3494 .0327
OZ1  .1866 .2492 .8895 .0200
OZ2  .1701 .4291 .1347 .0221
H1    .173  .486  .821  .053
H2    .160  .249  .179  .044
H3    .135  .448  .068  .053
H4    .005  .604  .964  .024
H5    .142  .212  .959  .052
H6    .000  .820  .319  .055
Download AMC data (View Text File)
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View JMOL 3-D Structure (permalink)
 
Witzkeite
 
Nestola F, Camara F, Chukanov N V, Atencio D,
Coutinho J M V, Contreira R R, Farber G
 
American Mineralogist 97 (2012) 1783-1787
Witzkeite: A new rare nitrate-sulphate mineral
from a guano deposit at Punta de Lobos, Chile
Locality: Punta de Lobos, Chile
_database_code_amcsd 0019473
24.902 5.3323 17.246 90 94.281 90 C2/c
atom      x       y       z occ  Uiso
Na1  .41977  .24195  .07588     .0214
Na2  .50009 -.26669  .08618     .0241
K1   .15202  .25031  .10623     .0247
K2   .32417  .24292  .23240     .0275
Ca       .5   .1735     .25     .0163
Fe       .5    .333     .25 .05 .0152
S1   .56605 -.75113  .07266     .0153
S2   .41680 -.27020  .22437     .0157
N1   .75732   .2462  .12315     .0323
O1   .43161   .4724  .20028     .0258
O2   .35931  -.2587  .23440     .0226
O3   .43758  -.0133 -.02829     .0239
O4   .43613   .5377 -.01849     .0227
O5   .55222  -.2044  .20292     .0238
O6   .38488   .2567  .37627     .0250
O7   .51776   .2672  .11856     .0210
O8   .43192  -.0888  .16526     .0259
O9   .25780   .0436  .34995     .0413
O10  .25789   .4491  .34928     .0417
O11  .78891   .2472  .07049     .0504
Ow   .32731   .2459  .05085     .0383
H1    .3102    .377    .059      .037
H2     .308    .134    .060       .07
Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure (permalink)
 
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Total number of retrieved datasets: 3
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