olivenite

[ oh-liv-uh-nahyt, ol-uh-vuh- ]
/ oʊˈlɪv əˌnaɪt, ˈɒl ə və- /

noun

a mineral, basic copper arsenate, Cu4As2O8(OH)2, occurring in crystals and in masses, usually olive-green in color.

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Origin of olivenite

1810–20; <German Oliven(erz) olive (ore) + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for olivenite

olivenite
/ (ɒˈlɪvɪˌnaɪt) /

noun

a green to black rare secondary mineral consisting of hydrated basic copper arsenate in orthorhombic crystalline form. Formula: Cu 2 (AsO 4)(OH)

Word Origin for olivenite

C19: from German Oliven (erz) olive (ore) + -ite 1
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