mineral

Malachite pendant

Malachite, Cu₂CO₃(OH)₂

AI-generated identification · may be incorrect

Opaque, vivid green with concentric banding and silky-to-vitreous luster; Mohs hardness 3.5–4, monoclinic crystal system, perfect cleavage. The pictured stone is polished and shaped as jewelry.

Identified October 6, 2026More mineral →

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Physical properties

Opaque, vivid green with concentric banding and silky-to-vitreous luster; Mohs hardness 3.5–4, monoclinic crystal system, perfect cleavage. The pictured stone is polished and shaped as jewelry.

Formation & geological history

A secondary copper carbonate mineral formed in the oxidized zones of copper deposits, often from alteration of other copper minerals; it commonly forms in veins and crusts rather than large crystals.

Uses & applications

Used for ornamental carvings, beads, and jewelry; historically also used as copper ore and pigment.

Geological facts

Its distinctive green bands are growth patterns in the mineral, and malachite can be confused with dyed materials; avoid prolonged exposure to acids or abrasive wear.

Field identification & locations

Common sources include the Democratic Republic of the Congo, Zambia, Russia, and Australia. Field clues include strong green color, banding, and a relatively soft surface; confirm identity with mineral testing rather than appearance alone.