A yellow crystalline mineral consisting of a sulfide of copper and iron. It is the principal ore of copper.
- Chemical formula CuFeS2.
- Vein minerals are barite, calcite, chalcopyrite, galena, pyrite, and sphalerite.
- The main ore minerals are galena, chalcopyrite, sphalerite, and tetrahedrite that are associated with quartz and barite gangue.
- Barite, sphalerite, and calcite are the most abundant vein minerals; pyrite, kaolinite, chalcopyrite, galena, and wurtzite are less common.
Mid 19th century: from modern Latin chalcopyrites, from Greek khalkos 'copper' + puritēs (see pyrite).
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