Brass yellow, may have iridescent purplish tarnish.
Crystal habit
Predominantly the disphenoid and resembles a tetrahedron, commonly massive, and sometimes botryoidal.
Twinning
Penetration twins
Cleavage
Indistinct on {011}
Fracture
Irregular to uneven
Tenacity
Brittle
Mohs scale hardness
3.5–4
Luster
Metallic
Streak
Greenish black
Diaphaneity
Opaque
Specific gravity
4.1–4.3
Optical properties
Opaque
Solubility
Soluble in HNO3
Other characteristics
magnetic on heating
References
[2][3][4][5][6]
Chalcopyrite (/ˌkælkəˈpaɪˌraɪt,-koʊ-/[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 CuFeS2 and crystallizes in the tetragonal system. It has a brassy to golden yellow color and a hardness of 3.5 to 4 on the Mohs scale. Its streak is diagnostic as green-tinged black.[9]
On exposure to air, chalcopyrite tarnishes to a variety of oxides, hydroxides, and sulfates. Associated copper minerals include the sulfides bornite (Cu5FeS4), chalcocite (Cu2S), covellite (CuS), digenite (Cu9S5); carbonates such as malachite and azurite, and rarely oxides such as cuprite (Cu2O). It is rarely found in association with native copper. Chalcopyrite is a conductor of electricity.[10]
Copper can be extracted from chalcopyrite ore using various methods. The two predominant methods are pyrometallurgy and hydrometallurgy, the former being the most commercially viable.[11]
^Haldar, S. K. (2020-01-01), Haldar, S. K. (ed.), "Chapter 1 - Minerals and rocks", Introduction to Mineralogy and Petrology (Second Edition), Oxford: Elsevier, pp. 1–51, doi:10.1016/b978-0-12-820585-3.00001-6, ISBN 978-0-12-820585-3, S2CID 226592959, retrieved 2023-02-10
^Havlík, Tomáš (2008-01-01), Havlík, Tomáš (ed.), "Chapter 10 - Effect of The Electronic Structure on leaching of Sulphide Semiconductors", Hydrometallurgy, Woodhead Publishing Series in Metals and Surface Engineering, Woodhead Publishing, pp. 294–308, doi:10.1533/9781845694616.294, ISBN 978-1-84569-407-4, retrieved 2023-02-10
^Cite error: The named reference Daehn-2022 was invoked but never defined (see the help page).
Chalcopyrite (/ˌkælkəˈpaɪˌraɪt, -koʊ-/ KAL-kə-PY-ryte, -koh-) is a copper iron sulfide mineral and the most abundant copper ore mineral. It has the chemical...
widely in porphyry copper deposits along with the more common chalcopyrite. Chalcopyrite and bornite are both typically replaced by chalcocite and covellite...
and light brownish bronze streak. In contrast, pyrite, pyrrhotite and chalcopyrite will all display much darker streaks: brownish black, greyish black,...
In later years "orichalcum" was used to describe the sulfide mineral chalcopyrite and also to describe brass. These usages are difficult to reconcile with...
"A Moderately Thermophilic Mixed Microbial Culture for Bioleaching of Chalcopyrite Concentrate at High Pulp Density". Applied and Environmental Microbiology...
Creighton Mine. Common ore minerals found at the Creighton mine include chalcopyrite, cubanite, galena, ilmenite, magnetite, pentlandite, pyrite, and pyrrhotite...
Bavaria, Germany. It is often found in association with the minerals chalcopyrite and triphylite. Phosphophyllite has been synthesized synthetically by...
identified. Ore minerals in IOCG deposits are typically copper-iron sulfide chalcopyrite and gangue pyrite, forming 10–15% of the rock mass. Supergene profiles...
industrially-produced single crystal. A specimen consisting of a bornite-coated chalcopyrite crystal nestled in a bed of clear quartz crystals and lustrous pyrite...
of copper sulfide deposits. Commonly found as coatings on chalcocite, chalcopyrite, bornite, enargite, pyrite, and other sulfides, it often occurs as pseudomorphic...
platinum group and other metals. This magma formed into pyrrhotite, chalcopyrite and pentlandite rocks, as well as cubanite and magnetite. In 1856 while...
magmatic sulfide assemblage is composed of Pyrrhotite, Pentlandite, and Chalcopyrite, with lesser to trace amounts of Pyrite, Cubanite and magnetite. The...
volcanogenic massive sulfide deposits. It is found in association with galena, chalcopyrite, pyrite (and other sulfides), calcite, dolomite, quartz, rhodochrosite...
economically valuable ores and minerals. Eastern regions are rich in chalcopyrite, nickel oxide, gold, platinum, chromite and magnetite ores, as well as...
metal and diatomic anions differ from that of pyrite. Despite its name, chalcopyrite (CuFeS 2) does not contain dianion pairs, but single S2− sulfide anions...
associated and mined with other sulfide minerals like pentlandite, pyrite, chalcopyrite, and magnetite, and has been found globally. Pyrrhotite exists as a number...
high conductivity, corrosion resistance Sulphide minerals, including chalcopyrite (CuFeS2; primary ore mineral) in sulphide deposits, or porphyry copper...
thick oxide cap. Below that cap is a supergene zone containing pyrite, chalcopyrite, and sphalerite. Below the supergene zone is found the unaltered massive...
investigation. Metal sulfides (e.g., pyrite FeS2, arsenopyrite FeAsS, chalcopyrite CuFeS2) are normally processed by chemical oxidation either in aqueous...
colloquial name for various minerals and alloys with high copper content: Chalcopyrite Brass This disambiguation page lists articles associated with the title...
sulfides include pyrrhotite, pentlandite (containing up to 5% Pd), and chalcopyrite along with lesser amounts of moncheite ((Pt,Pd)(Te,Bi)2), cooperite ((Pt...
found in hydrothermal veins in association with sphalerite, marcasite, chalcopyrite, cerussite, anglesite, dolomite, calcite, quartz, barite, and fluorite...
ore minerals in SEDEX deposits are fine-grained sphalerite and galena, chalcopyrite is significant in some deposits; silver-bearing sulfosalts are frequent...
gallium selenide). CIGS is a tetrahedrally bonded semiconductor, with the chalcopyrite crystal structure, and a bandgap varying continuously with x from about...
cup (on right), while the chalcopyrite crystal was mounted in a cup on an adjustable arm facing it (on left). The chalcopyrite crystal was moved forward...
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