malachite
malachite Mineral, Cu2CO3(OH)2; sp. gr. 3.9–4.0; hardness 3.5–4.0; monoclinic; bright green; pale green streak; in fibrous condition with a silky lustre, crystals with adamantine or vitreous lustre; crystals very rare, and it is usually found as botryoidal, encrusting masses with bands of varying colour, and frequently in a fibrous, radiating habit; common secondary mineral in the oxidized zone of copper deposits, associated with azurite, native copper, and cuprite; soluble with effervescence in dilute hydrochloric acid. It is often used for ornaments and pigments, and as an ore mineral for copper. See SPESSARTITE.
malachite
mal·a·chite / ˈmaləˌkīt/ • n. a bright green mineral consisting of copper hydroxyl carbonate. It typically occurs in masses and fibrous aggregates with azurite and is capable of taking a high polish.
malachite
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