Azurite vs Calcite
| Property | Azurite | Calcite |
|---|---|---|
| Formula | Cu3(CO3)2(OH)2 | CaCO3 |
| Crystal System | Monoclinic | Trigonal |
| Mineral Class | 05 Carbonates and Nitrates | 05 Carbonates and Nitrates |
| Mohs Hardness | 3.5-4.0 | 3.0 |
| Color | Azure blue, dark blue | Colorless, white, yellow, orange, blue, green |
| Luster | Vitreous | Vitreous |
| Streak | Light blue | White |
| Transparency | Transparent | Transparent |
| Cleavage | Perfect {011}, fair {100} | Perfect rhombohedral {1011} |
| Fracture | Conchoidal | Conchoidal |