cattierite

{{infobox mineral | name = Cattierite | image = File:Cattierite-654100.jpg | alt = | caption = Cattierite crystals in dolomite matrix | category = Sulfide mineral | formula = CoS2 | IMAsymbol=Cat | strunz = 2.EB.05a | dana = | system = Cubic | class = Diploidal (m) H-M symbol: (2/m ) | symmetry = Pa | unit cell = a = 5.52 Å; Z = 4 | color = Pink to grayish white | habit = Cubic crystals and granular intergrowths | twinning = | cleavage = Perfect on {001} | fracture = | tenacity = | mohs = 4 | luster = Metallic | streak = | diaphaneity = Opaque | gravity = 4.82 | density = | polish = | opticalprop = Isotropic | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | references = }} Cattierite (CoS2) is a cobalt sulfide mineral found in the Democratic Republic of Congo. It was discovered together with the nickel sulfide vaesite by Johannes F. Vaes, a Belgian mineralogist and named after Felicien Cattier, who was chairman of the board of the Union Minière du Haut-Katanga.

The mineral belongs to the pyrite group, in which all minerals share the same building principle. The metal in the oxidation state +2 forms a sodium chloride structure together with the anion S22−. This formalism recognizes that the sulfur atoms in pyrite occur in pairs with clear S-S bonds.