Anhydrite
Wasastjerna J
Commentationes Physico-Mathematicae 2 (1927) 1-46
The crystal structure of anhydrite, CaSO4
_database_code_amcsd 0020855
6.24 6.98 6.97 90 90 90 Bbmm
atom   x   y   z
Ca   .65 .25   0
S    .15 .25   0
O1   .31 .06   0
O2   .01 .25 .19