AM_Gypsum_11 Formula: Ca S O6 D4 Name: Gypsum Unit cell: 5.6769 15.2074 6.5277 90.0 118.494 90.0 , V=495.28 Space group: I12/A1 (15)

Knight K S , Stretton I C , Schofield P F , Physics and Chemistry of Minerals , 26 (1999) p.477-483, Temperature evolution between 50 K and 320 K of the, thermal expansion tensor of gypsum derived from neutron powder, diffraction data, Sample: T = 320 K