FeCO3

Iron carbonate (FeCO₃), commonly known as siderite, is an iron oxide ceramic compound that occurs naturally as an ore mineral and can be synthesized for industrial applications. It serves primarily as an iron ore feedstock in steelmaking and as a raw material in chemical processing, where it is thermally decomposed to produce iron oxide products. Engineers select FeCO₃ for its role in iron production chains and in specialized applications requiring controlled iron oxide formation, though its use is largely upstream in manufacturing rather than as a final engineering material.