Cattierite

Cattierite (CoS2) is a mineral found in the Democratic Republic of Congo. It was discovered together with Vaesite by Johannes F. Vaes, a Belgian mineralologist and named after Felicien Cattier, Chairman of the Board, Union Miniere du Haut Katanga.[1]

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.

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