NIGERIA
| Property | Specification |
| Common Name | Iron Ore |
| Chemical Composition | Mainly iron oxides (Fe2O3, Fe3O4) |
| Color | Reddish-brown, dark gray, black |
| Hardness (Mohs scale) | 5.5–6.5 |
| Density | 3.5–5.2 g/cm³ (varies by type) |
| Luster | Metallic to dull |
| Magnetic Properties | Magnetic (especially magnetite) |
| Texture | Granular, crystalline, or earthy |
| Typical Size Range | Fine particles to large chunks |
| Common Types | Hematite, Magnetite, Goethite, Limonite |
| Specific Gravity | 4.9–5.2 (hematite), 5.2 (magnetite) |
| Moisture Content | Varies, typically 5–15% in natural ore |