mineral

Chrysocolla-rich copper ore

Chrysocolla (hydrated copper aluminosilicate), likely with malachite, azurite, and/or tenorite

AI-generated identification · may be incorrect

Typically blue to blue-green with earthy to vitreous luster and botryoidal or massive texture; Mohs hardness about 2–4. It has no consistent crystal form or cleavage, and commonly shows dark brown-black copper-oxide matrix.

Identified August 30, 2026More mineral →

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Physical properties

Formation & geological history

Forms as a secondary copper mineral in oxidized zones above copper sulfide deposits, where acidic groundwater alters primary copper minerals. It commonly occurs in relatively young weathering zones, although the host deposits may be geologically ancient.

Uses & applications

Used as a decorative lapidary material, cabochons, beads, and mineral specimens; it is generally too soft and porous for durable jewelry. Copper ores associated with it may have economic value.

Geological facts

The intense cyan-blue color is characteristic of hydrated copper minerals, especially chrysocolla and azurite. The specimen may be a polished or naturally smoothed piece rather than a single pure mineral.

Field identification & locations

Look for vivid blue-green color, irregular mottling, low hardness, and association with green malachite or dark copper oxides; common localities include Arizona, Nevada, Chile, Peru, and the Democratic Republic of Congo. Exact identification requires hardness, streak, or laboratory testing because dyed materials and similar copper minerals can resemble it.