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.

Origin of olivenite

1810–20; < German Oliven(erz) olive (ore) + -ite1

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