vaesite

{{infobox mineral | name = Vaesite | category = Sulfide minerals | boxwidth = | image = Vaesite-626130.jpg | alt = | caption = Vaesite on a matrix | formula = NiS2 | IMAsymbol = Va | molweight = | strunz = | dana = | system = Isometric | class = | symmetry = | unit cell = | color = Black, silver-gray | colour = | habit = | twinning = | cleavage = Distinct/good {001} | fracture = | tenacity = | mohs = 4.5–5.5 | luster = Metallic | streak = Black | diaphaneity = Opaque | gravity = 4.45 | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence= | absorption = | melt = | fusibility = | diagnostic = | solubility = | other = | alteration = | 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.