cuprite

cuprite
/kyooh"pruyt, kooh"-/, n.
a mineral, cuprous oxide, Cu2O, occurring in red crystals and brown to black granular masses: an ore of copper.
[1840-50; CUPR- + -ITE1]

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 soft, heavy, red oxide mineral (Cu2O) that is an important ore of copper. A secondary mineral often formed by the weathering of copper sulfide minerals, cuprite is widespread as brilliant crystals, grains, or earthy masses in the oxidized zone of copper lodes. Deposits have been found at Chessy, Fr.; several places in Cornwall, Eng.; Broken Hill, Australia; and Tsumeb, South West Africa/Namibia. It is abundant in the copper districts of the southwestern U.S., as at Bisbee, Ariz. For detailed physical properties, see oxide mineral (table).

      Cuprite has two unusual varieties. Chalcotrichite, or plush copper ore, is loosely matted aggregates of capillary crystals with a rich carmine colour and a silky lustre. Tile ore is a soft, earthy variety that is brick red to brownish red; it often contains admixed hematite or limonite and has been formed by the alteration of chalcopyrite.

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Universalium. 2010.

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Look at other dictionaries:

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  • Cuprite — Cu prite (k? pr?t), n. (Min.) The red oxide of copper; red copper; an important ore of copper, occurring massive and in isometric crystals. [1913 Webster] …   The Collaborative International Dictionary of English

  • cuprite — s. f. [Mineralogia] Minério vermelho que encerra pequena quantidade de cobre.   ‣ Etimologia: cupri + ite   ♦ Grafia no Brasil: cuprita …   Dicionário da Língua Portuguesa

  • cuprite — [kyo͞o′prīt΄, ko͞o′prīt΄] n. a reddish mineral, Cu2O, that is an ore of copper; cuprous oxide …   English World dictionary

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  • cuprite — noun a mineral consisting of cuprous oxide that is a source of copper • Hypernyms: ↑mineral • Substance Meronyms: ↑copper, ↑Cu, ↑atomic number 29 * * * cuprite Min. (ˈkjuːpraɪt) [f. L. cupr um copper + …   Useful english dictionary

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  • cuprite — noun Etymology: German Kuprit, from Late Latin cuprum Date: circa 1850 a red mineral consisting of copper oxide that is a minor ore of copper …   New Collegiate Dictionary

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