Pabstite
Hawthorne F C
Neues Jahrbuch fur Mineralogie, Monatshefte 1987 (1987) 16-30
The crystal chemistry of the benitoite group minerals and
structural relations in (Si3O9) ring structures
Sample: "occurs in small fractures and as scattered grains in
recrystallized siliceous limestone at Santa Cruz, Ca"
_database_code_amcsd 0014808
6.7037 6.7037 9.824 90 90 120 P-6c2
atom     x      y      z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ba     2/3    1/3      0     .0113  .0091  .0091  .0159  .0045      0      0
Sn     1/3    2/3      0 .77 .0067  .0070  .0070  .0060  .0035      0      0
Ti     1/3    2/3      0 .23 .0067  .0070  .0070  .0060  .0035      0      0
Si   .0674  .2858    .25     .0047  .0054  .0028  .0053  .0016      0      0
O1   .2505  .1933    .25     .0084  .0040  .0014  .0192  .0009      0      0
O2   .0808  .4237  .1137     .0094  .0089  .0114  .0083  .0054  .0006  .0040