Witherite Holl C M, Smyth J R, Laustsen H M S, Jacobsen S D, Downs R T Physics and Chemistry of Minerals 27 (2000) 467-473 Compression of witherite to 8 GPa and the crystal structure of BaCO3 II Sample: P = 7.05 GPa _database_code_amcsd 0008428 5.251 8.868 5.762 90 90 90 Pmcn atom x y z Uiso Ba .25 .4168 .7551 .011 C .25 .768 .905 .011 O1 .25 .900 .875 .015 O2 .460 .684 .892 .014