mineral

Blue-green copper mineral rock, likely chrysocolla-bearing matrix

Chrysocolla (hydrated copper aluminosilicate), commonly with malachite, limonite, and quartz

AI-generated identification · may be incorrect

Irregular blue-green and brown massive specimen with dull to earthy luster; chrysocolla is typically Mohs 2–4, non-cleaving, and may show botryoidal or fibrous textures. Exact identification requires hardness, streak, and chemical testing because similar colors occur in turquoise and copper ores.

Identified September 16, 2026More mineral →

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At a glance

Common name: Blue-green copper mineral rock, likely chrysocolla-bearing matrix
Scientific name: Chrysocolla (hydrated copper aluminosilicate), commonly with malachite, limonite, and quartz
Category: mineral
Identified: September 16, 2026
Method: Standard

AI Estimated Value

Approximately $5–$30 for a common rough piece; $30–$150+ for attractive polished or strongly colored specimens.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Forms in oxidized zones of copper deposits when acidic, copper-rich groundwater alters host rock, generally at shallow crustal levels during the Cenozoic or older ore-forming events.

Uses & applications

Used as an ornamental stone, cabochon material, pigment historically, and copper-ore indicator; matrix specimens are mainly collected for display.

Geological facts

Blue-green coloration reflects copper minerals, while brown areas are likely iron oxides or altered host rock. Chrysocolla is often confused with turquoise, but it is generally softer and less uniformly waxy.

Field identification & locations

Common in copper districts of Arizona, Nevada, Chile, Peru, the Democratic Republic of the Congo, and Australia. A pale blue-green streak, softness, and copper-reactive chemistry help distinguish it; visual identification alone is uncertain.