Answer: Fe2O3
Notes: Iron ores are rocks and minerals from which metallic iron can be extracted economically. The iron itself is usually found in the form of magnetite (Fe3O4), hematite (Fe2O3), goethite (FeO(OH), limonite (FeO(OH).n(H2O)) or siderite (FeCO3)] Hematite, also spelled as haematite, is the mineral form of iron (III) oxide (Fe2O3), one of several iron oxides. It is mined as the main ore of iron.
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