(der) Covellin, (der) Kupferindig Etymology: in honour of the italian Mineralogist N. Covelli, who did the first chemical analysis. Chemical formula: CuS Crystal system: hexagonal Mohs scale: 1,5 - 2 Density: 4,6 Environment: Mostly a secondary mineral of sulfide ore bodies in the oxidation zone. More specific details can be found in the mineral database