mineral

Chrysocolla-bearing copper ore

Chrysocolla (hydrated copper aluminosilicate), likely with malachite, azurite, or limonite

AI-generated identification · may be incorrect

Blue-green to turquoise botryoidal or earthy patches, commonly dull to vitreous; hardness about 2–4 Mohs, no consistent cleavage, and variable porosity. The brown/black matrix appears iron- or copper-oxide-rich host rock.

Identified September 20, 2026More mineral →

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Physical properties

Formation & geological history

Forms as a secondary copper-mineral coating in oxidized zones above copper deposits, typically from groundwater alteration. It is geologically young relative to the host rock, commonly Cenozoic or older depending on the deposit.

Uses & applications

Used as a decorative lapidary material, cabochons, beads, and mineral specimens; softer pieces may be stabilized with resin. Copper ore varieties have limited industrial value compared with primary copper sulfides.

Geological facts

Chrysocolla is often confused with turquoise because of its blue-green color, but it is generally softer and less compact. Associated green malachite, blue azurite, and brown limonite are common.

Field identification & locations

Identify by its vivid blue-green color, earthy texture, softness, and association with copper oxides; avoid relying on color alone. Common localities include Arizona, Nevada, Chile, Peru, Mexico, the Democratic Republic of the Congo, and Australia.