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 = 3.94 GPa
_database_code_amcsd 0004658
6.136 14.912 5.556 90 115.73 90 C2/c
atom      x      y       z  Uiso
Ca        0  .1672     .25  .009
S         0  .3255     .75  .005
O1     .084   .272    .589  .011
O2     .208   .384    .925  .013
WatOW -.226   .063   -.078  .015