mineral

Azurite with malachite

Azurite, Cu₃(CO₃)₂(OH)₂, with possible malachite, Cu₂CO₃(OH)₂

AI-generated identification · may be incorrect

Deep azure-to-cobalt blue, vitreous crystals and granular crust; azurite is monoclinic, Mohs hardness 3.5–4, with perfect cleavage. The green-blue areas may be malachite, which is also relatively soft; the image does not allow reliable testing or confirmation.

Identified October 17, 2026More mineral →

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Physical properties

Formation & geological history

Forms as a secondary copper mineral in oxidized zones of copper deposits, commonly alongside malachite. These deposits occur in rocks of many ages; the specimen’s specific age and locality cannot be determined from the image.

Uses & applications

Historically used as a blue pigment; today collected as a mineral specimen and occasionally used in ornamental objects. Its softness and sensitivity to heat and acids limit jewelry use.

Geological facts

Azurite can alter to green malachite through weathering and reaction with water and carbon dioxide.

Field identification & locations

Look for vivid blue color and blue crusts or crystals, often associated with green malachite and copper-bearing host rock. Common localities include Arizona, Morocco, Namibia, and Australia; the pictured material appears to be a specimen shown on a screen, so details are uncertain.