Calcite vs Galena
| Property | Calcite | Galena |
|---|---|---|
| Formula | CaCO3 | PbS |
| Crystal System | Trigonal | Cubic (Isometric) |
| Mineral Class | 05 Carbonates and Nitrates | 02 Sulfides and Sulfosalts |
| Mohs Hardness | 3.0 | 2.5-2.8 |
| Color | Colorless, white, yellow, orange, blue, green | Lead-gray |
| Luster | Vitreous | Metallic |
| Streak | White | Lead-gray |
| Transparency | Transparent | Opaque |
| Cleavage | Perfect rhombohedral {1011} | Perfect cubic {001} |
| Fracture | Conchoidal | Subconchoidal |