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CUPRITE

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Cuprite
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cu⋅prite

  [kyoo-prahyt, koo-]
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–noun
a mineral, cuprous oxide, Cu2O, occurring in red crystals and brown to black granular masses: an ore of copper.
Origin:
1840–50; cupr- + -ite 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Cuprite
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cu·prite   (kōō'prīt', kyōō'-)   
n.  A natural red secondary ore of copper, essentially Cu2O, that forms as a result of weathering.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia

cuprite

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)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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