Azurite vs Cassiterite
| Property | Azurite | Cassiterite |
|---|---|---|
| Formula | Cu3(CO3)2(OH)2 | SnO2 |
| Crystal System | Monoclinic | Tetragonal |
| Mineral Class | 05 Carbonates and Nitrates | 04 Oxides and Hydroxides |
| Mohs Hardness | 3.5-4.0 | 6.0-7.0 |
| Color | Azure blue, dark blue | Brown, black, reddish-brown, yellow |
| Luster | Vitreous | Adamantine |
| Streak | Light blue | White to pale brown |
| Transparency | Transparent | Translucent |
| Cleavage | Perfect {011}, fair {100} | Poor {100} |
| Fracture | Conchoidal | Subconchoidal to uneven |