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.
Experience has proved that, in taking five millions of tons out of the open cut, almost the entire mass is uniform and essentially composed of compact iron pyrites, with spots of copper pyrites and black sulphide.
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.