Anhydrite (soluble) Christensen A, Olesen M, Cerenius Y, Jensen T Chemistry of Materials 20 (2008) 2124-2132 Formation and transformation of five different phases in the CaSO4-H2O system: crystal structure of the subhydrate beta-CaSO4*0.5H2O and soluble anhydrite CaSO4 Locality: synthetic _database_code_amcsd 0020851 6.96895 6.96865 6.30044 90 90 120 P6_222 atom x y z Biso Ca .5 0 0 .66 S .5 0 .5 .46 O .4471 .1365 .3591 .98