Cambridge Encyclopedia :: Cambridge Encyclopedia Vol. 48

malachite

A hydrated copper carbonate mineral (Cu2CO3(OH)2) found in weathered copper ore deposits. It is bright green in colour.

Malachite
General
Category Mineral
Chemical Formula Cu2CO3(OH)2
Identification
Crystal system Monoclinic - prismatic
Crystal habit Massive, botryoidal, stalactitic
Color Green
Cleavage Perfect
Fracture Conchoidal to splintery
Mohs Scale of Hardness 3.5 - 4
Luster Dull/vitreous in large quantities, silky in crystal form
Streak green
Specific gravity 3.6 - 4

Malachite is a carbonate mineral, copper(II) carbonate hydroxide Cu2CO3(OH)2.

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