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[ten-uh-rahyt] /ˈtɛn əˌraɪt/
a mineral, cupric oxide, CuO, occurring in veins of copper in black, minute scales.
1860-65; named after G. Tenore (died 1861), president of Naples Academy; see -ite1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for tenorite
  • Mineralization generally occurs as bornite and chalcopyrite that has oxidized to azurite, malachite, and tenorite.
British Dictionary definitions for tenorite


a black mineral found in copper deposits and consisting of copper oxide in the form of either metallic scales or earthy masses. Formula: CuO
Word Origin
C19: named after G. Tenore (died l861), Italian botanist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for tenorite


copper oxide mineral (CuO) found as gray-to-black metallic crystals as a sublimation product on lavas. Melaconite, the massive variety, is common as earthy deposits in the oxidized zone of copper lodes. Crystals of tenorite have been identified at Mount Vesuvius and Mount Etna, Italy, and at Lostwithiel, Cornwall, Eng. Melaconite is abundant at Huerta de Arriba, Burgos, Spain, and at Bisbee, Ariz., where it was mined (1880-1902) as a copper ore. For detailed physical properties, see oxide mineral (table)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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