Anhydrite Xu H, Guo X, Bai J Physics and Chemistry of Minerals 44 (2017) 125-135 Thermal behavior of polyhalite: a high-temperature synchrotron XRD study Note: T = 648 K Locality: Salado formation at the WIPP site, Carlsbad, New Mexico, USA _database_code_amcsd 0020860 7.03276 7.02381 6.32712 90 90 90 Bmmb atom x y z Uiso Ca 0 .25 .3434 .0132 S 0 .75 .1581 .017 O1 .1725 .75 .0264 .025 O2 0 .5829 .3010 .025