
| Property | Specification | 
| Chemical Formula | CuFeS₂ (Chalcopyrite), Cu₂S (Chalcocite), CuO (Copper Oxide) | 
| Copper Content | 20% - 50% (depending on ore type) | 
| Color | Yellowish-bronze, reddish-brown, greenish, or black | 
| Hardness (Mohs Scale) | 3 - 4 | 
| Density | 2.6 - 8.9 g/cm³ (varies with type) | 
| Crystal System | Tetragonal (Chalcopyrite), Orthorhombic (Chalcocite) | 
| Luster | Metallic to sub-metallic | 
| Cleavage | Poor to imperfect | 
| Fracture | Uneven to conchoidal | 
| Streak | Greenish-black (Chalcopyrite), Dark brown to black (CuO) | 
| Transparency | Opaque | 
| Refractive Index | N/A | 
| Specific Gravity | 4.0 - 8.9 | 
| Solubility | Insoluble in water | 
| Magnetic Properties | Non-magnetic (except some ores containing magnetite) |