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olivenite

American  
[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.

olivenite British  
/ ɒˈlɪvɪˌnaɪt /

noun

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

"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

Etymology

Origin of olivenite

1810–20; < German Oliven ( erz ) olive (ore) + -ite 1

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.