mineral

Azurite with native copper

Azurite (Cu₃(CO₃)₂(OH)₂) with native copper (Cu)

AI-generated identification · may be incorrect

Azurite is deep blue with vitreous to dull luster and Mohs hardness 3.5–4; native copper is metallic, salmon-red, and malleable (Mohs 2.5–3). The specimen appears to be a blue azurite matrix heavily veined or crusted with metallic copper.

Identified August 29, 2026More mineral →

Explore Azurite with native copper in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Forms in oxidized zones of copper-ore deposits when groundwater alters primary copper sulfides, commonly during the Cenozoic or older geologic episodes. Typical associations include malachite, cuprite, chrysocolla, limonite, and calcite.

Uses & applications

Primarily a collector specimen; azurite was historically used as a blue pigment, while copper is important for electrical wiring, plumbing, alloys, and metallurgy. Fine sharp crystals or unusual natural-copper patterns can be highly desirable.

Geological facts

Azurite and malachite are chemically related copper carbonates, and azurite commonly alters into green malachite. The bright salmon-colored metallic patches strongly support native copper rather than gold.

Field identification & locations

Look for intense azure-blue color, relatively soft surfaces, and metallic reddish-copper growths in cavities or fractures. Important localities include Bisbee and Morenci, Arizona; Tsumeb, Namibia; Chessy, France; and Cap Garonne, France.