Gypsum
Comodi P, Nazzareni S, Zanazzi P F, Speziale S
American Mineralogist 93 (2008) 1530-1537
High-pressure behavior of gypsum: A single-crystal X-ray study
Locality: Valle di Caramanico, Abruzzo, Italy
Note: P = 3.15 GPa
_database_code_amcsd 0004657
6.162 14.965 5.580 90 115.38 90 C2/c
atom      x      y       z  Uiso
Ca        0  .1679     .25  .010
S         0  .3266     .75  .008
O1     .088   .270    .590  .012
O2     .205   .386    .920  .010
WatOW -.222   .062   -.078  .018