Chalcostibite
| Chalcostibite | |
|---|---|
| General | |
| Category | Chalcostibite Group |
| Formula | CuSbS2 |
| IMA symbol | Ccsb |
| Strunz classification | 02.HA.05 |
| Dana classification | 03.07.05.01 |
| Crystal system | Orthorhombic |
| Space group | Pnam (no. 62) |
| Identification | |
| Colour | Lead-gray, iron gray |
| Crystal habit | Granular |
| Cleavage | (001) |
| Fracture | Sub-Conchoidal |
| Tenacity | Brittle |
| Mohs scale hardness | 3–4 |
| Luster | Metallic |
| Streak | Black |
| Diaphaneity | Opaque |
| Specific gravity | 4.9 – 5 |
| Density | 4.9 – 5 g/cm3 (Measured) 5.011 g/cm3 (Calculated) |
| Pleochroism | Weak |
| Ultraviolet fluorescence | Non-fluorescent |
| References | , |
Chalcostibite is a copper antimony sulfide mineral.
Příbramite is related, having selenium instead of sulfur. Emplectite contains bismuth instead of antimony.