Azurite vs Copper
| Property | Azurite | Copper |
|---|---|---|
| Formula | Cu3(CO3)2(OH)2 | Cu |
| Crystal System | Monoclinic | Cubic (Isometric) |
| Mineral Class | 05 Carbonates and Nitrates | 01 Native Elements |
| Mohs Hardness | 3.5-4.0 | 2.5-3.0 |
| Color | Azure blue, dark blue | Copper-red, tarnishes to brown/green |
| Luster | Vitreous | Metallic |
| Streak | Light blue | Copper-red |
| Transparency | Transparent | Opaque |
| Cleavage | Perfect {011}, fair {100} | None |
| Fracture | Conchoidal | Hackly |