Chalcocite (/ ˈ k æ l k ə ˌ s aɪ t /), [6] [7] copper(I) sulfide (Cu 2 S), is an important copper ore mineral. It is opaque and dark gray to black, with a metallic luster. It has a hardness of 2.5–3 …
Named chalcosine in 1832 by François Sulpice Beudant from Greek, "chalkos", copper. This mineral was known by a wide variety of names previously. In 1868, James D. Dana and …
Secondary mineral in or near the oxidized zone of copper sulfide deposits. Cornwall, England and Butte, Montana. Link to MinDat.org Location Data. From the Greek, meaning chalkos, …
chalcocite, sulfide mineral that is one of the most important ores of copper. Valuable occurrences include deposits of sulfide minerals at Ely, Nev., and Morenci, Ariz., where other components …
Chalcocite is formed either as a primary vein mineral or, more typically, in supergene deposits where it forms as a result of the redeposition of copper from the breakdown of minerals such …
Chalcocite is an important copper mineral ore. It has been mined for centuries and is one of the most profitable copper ores. The reasons for this is its high copper content (67% atomic ratio …