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azurite

[azh-uh-rahyt] /ˈæʒ əˌraɪt/
noun
1.
a blue mineral, a hydrous copper carbonate, Cu 3 (CO 3) 2 (OH) 2 : an ore of copper.
2.
a gem of moderate value cut from this mineral.
Origin
1810-1820
1810-20; azure + -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for azurite
  • Some minerals can be recognized by their color: azurite is always a deep blue and malachite is green.
  • Mineralization generally occurs as bornite and chalcopyrite that has oxidized to azurite, malachite, and tenorite.
  • Mineralization consists principally of the copper carbonates, malachite, and azurite.
British Dictionary definitions for azurite

azurite

/ˈæʒʊˌraɪt/
noun
1.
an azure-blue mineral associated with copper deposits. It is a source of copper. Composition: copper carbonate. Formula: Cu3(CO3)2(OH)2. Crystal structure: monoclinic
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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azurite in Science
azurite
  (āzh'ə-rīt')   
A dark-blue monoclinic mineral occurring as a mass of crystals (an aggregate) or in the form of blades with wedge-shaped tips. It is often found together with the mineral malachite in copper deposits. Azurite is used as a source of copper, as a gemstone, and as a dye for paints and fabrics. Chemical formula: Cu3(CO3)2(OH)2.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for azurite

basic copper carbonate [Cu3(OH)2(CO3)2]. It is ordinarily found with malachite in the oxidized zone of copper lodes. Notable deposits are Tsumeb, Namibia; Chessy, Fr.; and Bisbee, Ariz., U.S. Azurite was used as a blue pigment in ancient Eastern wall painting and, from the 15th to the middle of the 17th century, in European painting. For detailed physical properties, see carbonate mineral (table)

Learn more about azurite with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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