MALACHITE
malachite
(noun) a green or blue mineral used as an ore of copper and for making ornamental objects
Source: WordNet® 3.1
Etymology
Noun
malachite (countable and uncountable, plural malachites)
(mineral) A bright green mineral, a basic copper carbonate, Cu2CO3(OH)2; one of the principal ores of copper.
A mild green colour, like that of the mineral.
Adjective
malachite (comparative more malachite, superlative most malachite)
Of a colour ranging from olive-taupe to a mild to deeply-rich (at times seemingly translucent) green, like that of the mineral which is present on oxidized copper.
Source: Wiktionary
Mal"a*chite, n. Etym: [Fr. Gr. malachite. Cf. Mallow.] (Min.)
Definition: Native hydrous carbonate of copper, usually occurring in green
mammillary masses with concentric fibrous structure.
Note: Green malachite, or malachite proper, admits of a high polish,
and is sometimes used for ornamental work. Blue malachite, or
azurite, is a related species of a deep blue color. Malachite green.
See Emerald green, under Green, n.
Source: Webster’s Unabridged Dictionary 1913 Edition