Bornite
Videos
Bornite, also known as peacock ore, is a sulfide mineral with chemical composition Cu5FeS4 that crystallizes in the orthorhombic system. It is an important copper ore.
Lightly iridescent bornite crystal on quartz needles, from Kazakhstan Specimen size: 3.6 cm × 2.2 cm × 1.2 cm (1.42 in × 0.87 in × 0.47 in)
Tarnish of bornite
Microscopic picture of Bornite
Bornite with silver from Zacatecas, Mexico (size: 7.5 × 4.3 × 3.4 cm)
Chalcopyrite
Videos
Chalcopyrite is a sulfide mineral composed of copper and iron, and the most abundant copper ore mineral. It has the chemical formula CuFeS2 and crystallizes in the tetragonal system. It has a brassy t
Bornite
…peacock copper or peacock ore. Bornite is an important copper ore mineral and occurs widely in porphyry copper deposits along with the more common chalcopyrite. Chalcopyrite and bornite are both typically replaced by chalcocite and covellite in the supergene enrichment zone of copper deposits. Bornite is also…
Chalcopyrite 199453
Microscopic picture of chalcopyrite
Brass-yellow chalcopyrite crystals below large striated pyrite cubes
Copper-zinc ore sample from a VMS deposit at Potter Mine in Timmins, Ontario, Canada. The brassy-yellow mineral is chalcopyrite- the primary ore mineral at this mine.