Sogdianite
Cooper M A, Hawthorne F C, Grew E S
American Mineralogist 84 (1999) 764-768
The crystal chemistry of sogdianite, a milarite-group mineral
Note: U(1,2) for Li2 changed to match symmetry constraints
Locality: Dara-i-Pioz, Tadjikistan
_database_code_amcsd 0002224
10.053 10.053 14.211 90 90 120 P6/mcc
atom      x      y      z  occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
ZrA     1/3    2/3    .25  .38  .0036  .0036  .0047  .0018      0      0
FeA     1/3    2/3    .25 .365  .0036  .0036  .0047  .0018      0      0
TiA     1/3    2/3    .25  .19  .0036  .0036  .0047  .0018      0      0
AlA     1/3    2/3    .25 .065  .0036  .0036  .0047  .0018      0      0
NaB     1/3    2/3  .0192 .425  .0179  .0179  .0395  .0090      0      0
KC        0      0    .25       .0187  .0187  .0210  .0093      0      0
Si1  .11664 .35485 .11056       .0067  .0075  .0066  .0037  .0000 -.0007
Li2       0     .5    .25       .0133  .0183  .0132 .00915      0      0
O1    .1325  .3971      0       .0302  .0194  .0073  .0120      0      0
O2    .2211  .2778 .13506       .0145  .0187  .0194  .0131 -.0015 -.0013
O3   .16186  .5041 .17134       .0114  .0099  .0126  .0056 -.0016 -.0036