AM_Gypsum_8 Formula: Ca S O6 H4 Name: Gypsum Unit cell: 6.2 15.01 5.61 90.0 114.86 90.0 , V=473.70 Space group: C12/C1 (15)

Comodi P , Nazzareni S , Zanazzi P F , Speziale S , American Mineralogist , 93 (2008) p.1530-1537, High-pressure behavior of gypsum: A single-crystal X-ray study, Locality: Valle di Caramanico, Abruzzo, Italy, Note: P = 2.03 GPa