Vaesite
| Vaesite | |
|---|---|
| Vaesite on a matrix | |
| General | |
| Category | Sulfide minerals | 
| Formula | NiS2 | 
| IMA symbol | Va | 
| Crystal system | Isometric | 
| Identification | |
| Color | Black, silver-gray | 
| Cleavage | Distinct/good {001} | 
| Mohs scale hardness | 4.5–5.5 | 
| Luster | Metallic | 
| Streak | Black | 
| Diaphaneity | Opaque | 
| Specific gravity | 4.45 | 
| References | |
Vaesite (NiS2) is a mineral found together with cattierite in the Democratic Republic of Congo. It is named after Johannes F. Vaes, a Belgian mineralogist. It is part of the pyrite group.