Vaesite

Vaesite
Vaesite on a matrix
General
CategorySulfide minerals
FormulaNiS2
IMA symbolVa
Crystal systemIsometric
Identification
ColorBlack, silver-gray
CleavageDistinct/good {001}
Mohs scale hardness4.5–5.5
LusterMetallic
StreakBlack
DiaphaneityOpaque
Specific gravity4.45
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.