mineral

Malachite

Malachite, Cu2CO3(OH)2

AI-generated identification · may be incorrect

Hardness: 3.5-4.0 (Mohs), Color: Bright green with layered banding, Luster: Adamantine to vitreous (silky when fibrous), Crystal structure: Monoclinic, Cleavage: Perfect in one direction, Specific gravity: 3.6-4.0

Hardness: 3

Identified June 17, 2026More mineral →

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Physical properties

Formation & geological history

Formed in the oxidized zone of copper deposits where carbonated water reacts with copper minerals; often found in limestone environments.

Uses & applications

Commonly used in jewelry as cabochons, decorative carvings, copper ore, and historically as a pigment.

Geological facts

In ancient Egypt, malachite was used as a cosmetic (eyeshadow) and for talismans; it is frequently found associated with Azurite.

Field identification & locations

Identified by its distinctive vibrant green concentric bands; commonly found in the Democratic Republic of the Congo, Russia, Australia, and Arizona, USA.