Cassiterite vs Copper
| Property | Cassiterite | Copper |
|---|---|---|
| Formula | SnO2 | Cu |
| Crystal System | Tetragonal | Cubic (Isometric) |
| Mineral Class | 04 Oxides and Hydroxides | 01 Native Elements |
| Mohs Hardness | 6.0-7.0 | 2.5-3.0 |
| Color | Brown, black, reddish-brown, yellow | Copper-red, tarnishes to brown/green |
| Luster | Adamantine | Metallic |
| Streak | White to pale brown | Copper-red |
| Transparency | Translucent | Opaque |
| Cleavage | Poor {100} | None |
| Fracture | Subconchoidal to uneven | Hackly |