(der) Chalkopyrit, (der) Kupferkies Etymology: gr. chalkos = Copper and gr. pyr = Fire. Chemical formula: CuFeS2 Crystal system: tetragonal Mohs scale: 3,5 Density: 4,1 - 4,3 Environment: Abundant in sulfide ore deposits. Chalcopyrite is the most important Copper ores, with copper contents up to 34,5%. More specific details can be found in the mineral database
A mineral containing copper. Its chemical name is copper iron sulphide - chemical formula CuFeS2. It is brassy yellow in colour, has a hardness of 3.5-4 and produces a green streak when scratched on a white tile.