Chrysocolla vs Galena
| Property | Chrysocolla | Galena |
|---|---|---|
| Formula | (Cu,Al)2H2Si2O5(OH)4 · nH2O | PbS |
| Crystal System | Orthorhombic | Cubic (Isometric) |
| Mineral Class | 09 Silicates | 02 Sulfides and Sulfosalts |
| Mohs Hardness | 2.0-4.0 | 2.5-2.8 |
| Color | Blue, blue-green, green, turquoise | Lead-gray |
| Luster | Vitreous | Metallic |
| Streak | White to pale blue | Lead-gray |
| Transparency | Translucent | Opaque |
| Cleavage | None | Perfect cubic {001} |
| Fracture | Conchoidal | Subconchoidal |