Turkestanite
Kabalov Yu K, Sokolova E V, Pautov L A, Schneider J
Crystallography Reports 43 (1998) 584-588
Crystal structure of a new mineral turkestanite: a calcium analogue of steacyite
Locality: Dzhelisu massif, Alayskiy range, Tien Shan, Kyrgyzstan
Note: calculated Biso's disagree with reported values
Note: z(O3) adjusted to match reported bond lengths
_database_code_amcsd 0012357
7.5792 7.5792 14.7042 90 90 90 P4/mcc
atom     x     y     z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
ThA      0     0   .25      .85  .0035  .0035  .0028      0      0      0
CaB      0    .5   .25 .70   .7  .0028  .0028  .0019      0      0      0
NaB      0    .5   .25 .25   .7  .0028  .0028  .0019      0      0      0
KC       0     0     0 .53  1.8   .026   .026   .002      0      0      0
Si   .2597 .3358 .1073      2.8   .008   .007  .0059  -.001  .0000  .0004
O1    .229  .310     0      3.3
O2    .454  .261 .1337      2.6
O3    .111  .258 .1574      2.6