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 = 2.03 GPa
_database_code_amcsd 0004656
6.200 15.010 5.610 90 114.86 90 C2/c
atom      x      y       z  Uiso
Ca        0  .1690     .25  .010
S         0  .3270     .75  .008
O1     .082   .271    .591  .014
O2     .201   .384    .918  .012
WatOW -.217   .064   -.079  .013