AM_Siderite Formula: Fe C O3 Name: Siderite Unit cell: 4.6887 4.6887 15.373 90.0 90.0 120.0 , V=292.68 Space group: R-3C (167)

Graf D L , American Mineralogist , 46 (1961) p.1283-1316, Crystallographic tables for the rhombohedral carbonates