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olivenite

[oh-liv-uh-nahyt, ol-uh-vuh-] /oʊˈlɪv əˌnaɪt, ˈɒl ə və-/
noun
1.
a mineral, basic copper arsenate, Cu 4 As 2 O 8 (OH) 2 , occurring in crystals and in masses, usually olive-green in color.
Origin
1810-1820
1810-20; < German Oliven(erz) olive (ore) + -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for olivenite

olivenite

/ɒˈlɪvɪˌnaɪt/
noun
1.
a green to black rare secondary mineral consisting of hydrated basic copper arsenate in orthorhombic crystalline form. Formula: Cu2(AsO4)(OH)
Word Origin
C19: from German Oliven(erz) olive (ore) + -ite1
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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