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Chalcopyrite (/ ˌ k æ l k ə ˈ p aɪ ˌ r aɪ t,-k oʊ-/ [7] [8] KAL-kə-PY-ryte, -koh-) is a copper iron sulfide mineral and the most abundant copper ore mineral. It has the chemical formula CuFeS 2 and crystallizes in the tetragonal system.
Formula % Copper when pure Chalcopyrite: CuFeS 2: 34.5 Chalcocite: Cu 2 S: 79.8 Covellite: CuS: 66.5 Bornite: 2Cu 2 S·CuS·FeS 63.3 Tetrahedrite: Cu 3 SbS 3 + x(Fe ...
In the mining industry, the minerals bornite or chalcopyrite, which consist of mixed copper-iron sulfides, are often referred to as "copper sulfides". In chemistry , a "binary copper sulfide" is any binary chemical compound of the elements copper and sulfur .
Talnakhite is a mineral of chalcopyrite group with formula: Cu 9 (Fe, Ni) 8 S 16. [2] It was named after the Talnakh ore deposit, near Norilsk in Western Siberia, Russia where it was discovered as reported in 1963 by I. Budko and E. Kulagov. [3] It was officially named "talnakhite" in 1968.
A pseudomorph is a mineral that has replaced another mineral atom by atom, but it leaves the original mineral's crystal shape intact. Chalcocite has been known to form pseudomorphs of the minerals bornite, covellite, chalcopyrite, pyrite, enargite, millerite, galena and sphalerite.
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.
Sphalerite is a sulfide mineral with the chemical formula (Zn, Fe)S. [5] It is the most important ore of zinc.Sphalerite is found in a variety of deposit types, but it is primarily in sedimentary exhalative, Mississippi-Valley type, and volcanogenic massive sulfide deposits.
Covellite (gray) replacing and embaying chalcopyrite (light), polished section from Horn Silver Mine, San Francisco Mining District, Utah. Enlarged to 210 diameters. Enlarged to 210 diameters. Covellite (also known as covelline ) is a rare copper sulfide mineral with the formula CuS. [ 4 ]