copper pyrites


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copper pyrites

copper pyrites

(ˈpaɪraɪts)
n
(Minerals) (functioning as singular) another name for chalcopyrite

chal•co•py•rite

(ˌkæl kəˈpaɪ raɪt)

n.
a common mineral, copper iron sulfide, CuFeS2, occurring in brass-yellow crystals or masses: the most important ore of copper; copper pyrites.
[1825–35]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.copper pyrites - a yellow copper ore (CuFeS2) made up of copper and iron sulfidecopper pyrites - a yellow copper ore (CuFeS2) made up of copper and iron sulfide
atomic number 29, copper, Cu - a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
References in classic literature ?
My host says that the two principal improvements introduced by foreigners have been, first, reducing by previous roasting the copper pyrites -- which, being the common ore in Cornwall, the English miners were astounded on their arrival to find thrown away as useless: secondly, stamping and washing the scoriae from the old furnaces -- by which process particles of metal are recovered in abundance.
3 and 6: Black quartz and white quartz from the Jebel el-Abyaz, gave no results except a small portion of copper pyrites in a lump of quartz.