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Bornite - Wikipedia
Bornite is an important copper ore mineral and occurs widely in porphyry .Chalcopyrite and bornite are both typically replaced by chalcocite and .
:3.5/5132012322-Copper ores include: iron sulfides of copper, copper sulfide class, primarily chalcopyrite, bornite and chalcocite combination of ore, coppe.
ClassicGems :: Chalcocite
Chalcocite is an important ore of copper and a secondary mineral in or .Bornite, Covellite, Chalcopyrite, Pyrite, Enargite, Galena and Sphalerite.
Chalcopyrite - Wikipedia
On exposure to air, chalcopyrite oxidises to a variety of oxides, .Porphyry copper ore deposits are formed by concentration of copper within a .
Chalcocite - Wikipedia
been mined for centuries and is one of the most profitable copper ores.. covellite, chalcopyrite, pyrite, enargite, millerite, galena and sphalerite.
bornite - definition and meaning
bornite: A brownish-bronze, lustrous copper ore with the composition Cu5FeS4 that tarnishes to purple when exposed to air.. n. A brownish-bronze, .