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General Siderite Information : Chemical Formula: Fe++CO3 : Composition: Molecular Weight = 115.86 gm Iron 48.20 % Fe 62.01 % FeO Carbon 10.37 % C 37.99 % CO 2 Oxygen 41.43 % O _____ _____ 100.00 % 100.00 % = TOTAL OXIDE: Empirical Formula: Fe 2+ (CO 3) Environment: Primarily bedded, biosedimentary deposits, also in …