| Mineral | Langite |
|---|---|
| Formula | Cu4(SO4)(OH)6 • 2(H2O) |
| Crystal Form | Monoclinic/Domatic [m] |
| Cleavage | [001] Perfect, [010] Distinct |
| Color | Blue green, Green blue, Sky blue |
| Density | 3.5 g/cm3 |
| Diaphaneity | Translucent |
| Fracture | Uneven |
| Hardness | 2.5 - 3.0 |
| Lustre | Vitreous |
| Streak | Greenish blue |
| Dana 8 Class | 31.4.3.1 |
| Strunz Class | VI/D.03-20 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 21 |