Iron Ore

Chemical Composition and Properties for Iron Ore

– General Formula: Varies depending on the type of iron ore; common forms include Fe₂O₃ (hematite), Fe₃O₄ (magnetite), FeO(OH) (goethite), and FeCO₃ (siderite).

– Primary Components: Iron oxides, hydroxides, and occasionally carbonates, depending on the ore type.

– Iron Content: Typically ranges from 50% to 72% iron by weight, depending on the ore’s purity and type.

– Colour: Ranges from red (hematite), black (magnetite), yellow-brown (goethite), to grey (siderite), depending on composition and weathering.

– Crystal System: Varies; hematite is trigonal, magnetite is isometric, goethite is orthorhombic, and siderite is trigonal.

– Hardness: 4 – 7 on the Mohs scale, depending on the type of iron ore.

– Specific Gravity: 3.3 – 5.3, varying with ore type.

Chemical Information
– CAS Number: 1317-60-8 (commonly used for iron oxides in iron ore).

– Chemical Composition: A mix of iron oxides, hydroxides, or carbonates, often represented as Fe₂O₃, Fe₃O₄, or FeO(OH).

– Molecular Weight: Variable, depending on the mineral’s composition.

– HS Code: 2601.11.00.00 (for iron ores and concentrates, primarily hematite and magnetite).