chalcopyrite

American  

[kal-kuh-pahy-rahyt] / ˌkæl kəˈpaɪ raɪt /

noun

1. a very common mineral, copper iron sulfide, CuFeS 2 , occurring in brass-yellow crystals or masses: the most important ore of copper; copper pyrites.

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chalcopyrite British  

/ ˌkælkəˈpaɪraɪt, -ˈpaɪə- /

noun

1. Also called: copper pyrites. a widely distributed yellow mineral consisting of a sulphide of copper and iron in tetragonal crystalline form: the principal ore of copper. Formula: CuFeS 2

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chalcopyrite Scientific  

/ kăl′kə-pī′rīt′ /

1. A brassy yellow, metallic, tetragonal mineral, usually occurring as shapeless masses of grains. Chalcopyrite is found in igneous rocks and copper-rich shales, and it is an important ore of copper. Because of its shiny look and often yellow color, it is sometimes mistaken for gold, and for this reason it is also called fool's gold. Chemical formula: CuFeS ₂ .

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Etymology

Origin of chalcopyrite

First recorded in 1825–35; chalco- + pyrite

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Compare meaning

How does chalcopyrite compare to similar and commonly confused words? Explore the most common comparisons:

• chalcopyrite vs. pyrite

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Example Sentences

See Examples For:

chalcopyrite

Past open pit production at this mine was dominated by copper and gold from chalcopyrite and bornite.

From Textbooks ● Jan. 1, 2017

In CIGSSe devices, the indium to gallium ratio is used to tailor the bandgap, and the materials should be copper-deficient relative to the ideal chalcopyrite stoichiometry to avoid detrimental electrical shunting.

From Nature ● Aug. 15, 2012

This defective chalcopyrite layer leads to more pronounced rollover and crossover signatures in J–V curves.

From Nature ● Aug. 15, 2012

Covellite is, however, more commonly found in copper-bearing veins, where it has resulted by the alteration of other copper sulphides, namely chalcopyrite, copper-glance and erubescite.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 6 "Coucy-le-Château" to "Crocodile" by Various

Owing to the frequent presence of mechanically admixed chalcopyrite and chalcocite, the published analyses of erubescite show wide variations, the copper, for example, varying from 50 to 70%.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" by Various

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