Benitoite
Zachariasen W H
Zeitschrift fur Kristallographie 74 (1930) 139-146
The crystal structure of benitoite, BaTiSi3O9
Locality: Dallas Gem Mine, San Benito, Ca
_database_code_amcsd 0010497
6.60 6.60 9.74 90 90 120 P-6c2
atom    x    y    z
Ba    2/3  1/3    0
Ti    1/3  2/3    0
Si   .056 .278  .25
O1   .222 .195  .25
O2   .083 .430 .117