Bicchulite
Sahl K, Chatterjee N D
Zeitschrift fur Kristallographie 146 (1977) 35-41
The crystal structure of bicchulite, Ca2[Al2SiO6](OH)2
Locality: synthetic
_database_code_amcsd 0010796
8.825 8.825 8.825 90 90 90 I-43m
atom    x    y    z occ Biso
Ca   .144 .144 .144       .7
Al    .25   .5    0 2/3   .5
Si    .25   .5    0 1/3   .5
O    .149 .149 .424      1.5
OH   .382 .382 .382      1.5