Siderite Liang W, Yin Y, Li Z, Li R, Li L, He Y, Dong H, Li Z, Yan S, Zhai S, Li H Physics and Chemistry of Minerals 45 (2018) 831-842 Single crystal growth, crystalline structure investigation and high-pressure behavior of impurity-free siderite (FeCO3) Locality: synthetic _database_code_amcsd 0021224 4.6861 4.6861 15.362 90 90 120 R-3c atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Fe 0 0 0 .0021 .0021 .0025 .0010 0 0 C 0 0 .25 .004 .004 .003 .0021 0 0 O .2757 0 .25 .0017 .0047 .0064 .0024 -.0007 -.0014