Filatovite
Filatov S K, Krivovichev S V, Burns P C, Vergasova L P
European Journal of Mineralogy 16 (2004) 537-543
Crystal structure of filatovite, K[(Al,Zn)2(As,Si)2O8],
the first arsenate of the feldspar group
_database_code_amcsd 0007076
8.772 13.370 14.690 90 115.944 90 I2/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)
K    .28451 .00038 .06940 .90 .0465  .0292  .0567  .0483  -.0009  .0122  -.0010
Na   .28451 .00038 .06940 .10 .0465  .0292  .0567  .0483  -.0009  .0122  -.0010
AsT1 .00850 .18364 .10767 .55 .0175  .0187  .0189  .0154 -.00378 .00783 -.00119
SiT1 .00850 .18364 .10767 .45 .0175  .0187  .0189  .0154 -.00378 .00783 -.00119
AlT2 .00558 .18560 .61510 .94 .0205  .0201  .0236  .0181  -.0032  .0085  -.0014
ZnT2 .00558 .18560 .61510 .06 .0205  .0201  .0236  .0181  -.0032  .0085  -.0014
AlT3 .71009 .12077 .17143 .96 .0215  .0207  .0197  .0229  -.0009  .0084  -.0007
ZnT3 .71009 .12077 .17143 .04 .0215  .0207  .0197  .0229  -.0009  .0084  -.0007
AsT4 .70229 .11568 .67225 .55 .0177  .0174  .0154  .0185 -.00107 .00627 -.00060
SiT4 .70229 .11568 .67225 .45 .0177  .0174  .0154  .0185 -.00107 .00627 -.00060
O1    .0046  .1435  .0010     .0292  .0389  .0292  .0200  -.0001  .0134  -.0031
O2    .6299  .9986  .1418     .0345  .0303  .0203  .0418   .0027  .0056   .0047
O3    .8340  .1450  .1076     .0448  .0342   .062  .0476  -.0176  .0264  -.0069
O4    .8160  .1447  .6131     .0406  .0290   .060  .0377  -.0080  .0191   .0006
O5    .0253  .3055  .1204     .0297  .0312  .0201  .0352  -.0036  .0121  -.0042
O6    .0336  .3145  .6345     .0305  .0238  .0241  .0386  -.0043  .0091  -.0046
O7    .1751  .1303  .1970     .0351  .0359  .0371  .0211   .0047  .0023   .0034
O8    .1839  .1214  .7048     .0311  .0305  .0354  .0212   .0051  .0056   .0008