Holtite
Zubkova N V, Pushcharovskii D Y, Kabalov Y K, Kazantsev S S, Voloshin A V
Crystallography Reports 51 (2006) 16-22
Crystal structure of holtite II
Locality: Kola Peninsula, Russia
_database_code_amcsd 0019758
4.6893 11.881 20.394 90 90 90 Pnma
atom    x     y     z occ Uiso
Ta1  .413   .75 .2517 .30 .019
Al1  .413   .75 .2517 .26 .019
Al2  .555 .6080 .4712 .95 .015
Sb2  .555 .6080 .4712 .05 .015
Al3  .059 .4915 .4320     .009
Al4  .061 .3604 .2893 .98 .019
Sb1' .103   .75 .3911 .44 .039
Si2  .586  .513  .332 .65 .010
Sb2' .619  .557 .3192 .30 .010
As2' .619  .557 .3192 .05 .010
B     .23   .25  .412      .07
O1   .378   .75  .454     .001
O2   .165   .75  .332 .56 .001
O3   .895  .637 .4258     .001
O4   .400  .433 .2826     .001
O5   .396  .553 .3940     .001
O6   .886  .459 .3493     .001
O7   .669  .640  .290 .65 .001
O8   .174   .25  .346     .001
O9   .251  .347 .4449     .001
O10  .753   .25  .280     .001
O11  .746  .467 .4893     .001