
| Property | Specification | 
| Chemical Formula | Fe₂O₃ (Hematite), Fe₃O₄ (Magnetite) | 
| Iron Content | 50% - 70% (depending on type) | 
| Color | Dark gray, black, reddish-brown, or yellow-brown | 
| Hardness (Mohs Scale) | 4 - 6 | 
| Density | 2.5 - 7.0 g/cm³ (varies with type) | 
| Crystal System | Trigonal (Hematite), Cubic (Magnetite) | 
| Luster | Metallic to sub-metallic | 
| Cleavage | Hematite: imperfect; Magnetite: none | 
| Fracture | Uneven to conchoidal | 
| Streak | Red to brown (Hematite), Black (Magnetite) | 
| Transparency | Opaque | 
| Refractive Index | N/A | 
| Specific Gravity | 5.0 - 7.5 | 
| Solubility | Insoluble in water | 
| Magnetic Properties | Magnetite is strongly magnetic; Hematite is non-magnetic |