mineral

Polished malachite pendant

Malachite, Cu₂CO₃(OH)₂; monoclinic copper carbonate hydroxide

AI-generated identification · may be incorrect

Opaque, vivid to dark green with concentric banding and a silky-to-vitreous polish; Mohs hardness 3.5–4, monoclinic crystal system, and perfect cleavage. The pictured piece appears polished and set as jewelry; exact identification from an image is not certain.

Identified October 13, 2026More mineral →

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Physical properties

Formation & geological history

Forms secondarily as a copper-ore weathering mineral in oxidized zones of copper deposits, often alongside azurite. Deposits occur in rocks of many ages, so age cannot be determined from the pendant.

Uses & applications

Used for carvings, beads, ornamental objects, and jewelry; its softness means it can scratch or be damaged by acids and heat.

Geological facts

The distinctive green bands are growth patterns formed as mineral-rich water precipitates successive layers.

Field identification & locations

Identify by its opaque green concentric bands and relatively low hardness; common sources include the Democratic Republic of the Congo, Zambia, Russia, and Australia. Avoid abrasive cleaning and prolonged skin contact with dust or soluble copper compounds.