Cassiterite vs Galena
| Property | Cassiterite | Galena |
|---|---|---|
| Formula | SnO2 | PbS |
| Crystal System | Tetragonal | Cubic (Isometric) |
| Mineral Class | 04 Oxides and Hydroxides | 02 Sulfides and Sulfosalts |
| Mohs Hardness | 6.0-7.0 | 2.5-2.8 |
| Color | Brown, black, reddish-brown, yellow | Lead-gray |
| Luster | Adamantine | Metallic |
| Streak | White to pale brown | Lead-gray |
| Transparency | Translucent | Opaque |
| Cleavage | Poor {100} | Perfect cubic {001} |
| Fracture | Subconchoidal to uneven | Subconchoidal |