Anhydrite
Bezou C, Nonat A, Mutin J C, Christensen A N, Lehmann M S
Journal of Solid State Chemistry 117 (1995) 165-176
Of the crystal structure of gamma-CaSO4, CaSO4*0.5(H2O), and CaSO4*0.6(H2O)
by powder diffraction methods
Locality: Maurienne, France
_database_code_amcsd 0013866
12.0777 6.9723 6.3040 90 90 90 C222
atom     x     y     z Biso
Ca2    .25   .25 .6664 1.60
Ca4      0     0     0  .62
S2       0     0    .5  .73
S4     .25   .25 .1648  .56
O12  .0713 .8842 .3548  .69
O41  .2267 .4152 .3049  .18
O42  .3494  .274 .0292 1.01