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chalcopyrite

[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.
Origin of chalcopyrite
1825-1835
1825-35; chalco- + pyrite
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for chalcopyrite

chalcopyrite

/ˌkælkəˈpaɪraɪt; -ˈpaɪə-/
noun
1.
a widely distributed yellow mineral consisting of a sulphide of copper and iron in tetragonal crystalline form: the principal ore of copper. Formula: CuFeS2 Also called copper pyrites
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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chalcopyrite in Science
chalcopyrite
  (kāl'kə-pī'rīt')   
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: CuFeS2.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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