mineral

Chrysocolla-bearing copper ore

Chrysocolla (hydrated copper aluminum silicate, approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O), likely mixed with malachite, quartz, and limonite

AI-generated identification · may be incorrect

Blue-green botryoidal to earthy patches in a brown, tan, or gray matrix; typically dull to waxy, opaque, and lacks visible crystals. Chrysocolla hardness is about Mohs 2–4, with variable specific gravity around 2.0–2.4; associated malachite may show brighter green areas.

Identified September 17, 2026More mineral →

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At a glance

Common name: Chrysocolla-bearing copper ore
Scientific name: Chrysocolla (hydrated copper aluminum silicate, approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O), likely mixed with malachite, quartz, and limonite
Category: mineral
Identified: September 17, 2026
Method: Standard

AI Estimated Value

About $5–$30 for a small rough matrix specimen; attractive polished or gem-grade material may sell for $30–$150+.

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 as a secondary copper-mineral deposit in the oxidized zones of copper sulfide ores, commonly through groundwater alteration. It is generally Cenozoic or older depending on the host deposit, rather than a distinct rock formed at one fixed age.

Uses & applications

Used as a copper ore when sufficiently concentrated, and as a lapidary or ornamental material; attractive polished pieces may enter the jewelry market, though this specimen appears mostly matrix ore.

Geological facts

The turquoise-blue color comes from hydrated copper minerals and can resemble turquoise. Chrysocolla is commonly intergrown with malachite, azurite, cuprite, quartz, and iron oxides.

Field identification & locations

Identify by vivid blue-green color, softness, earthy texture, and copper-stained matrix; a streak, hardness, and copper-mineral testing can help distinguish it from turquoise. Common localities include Arizona, Nevada, Chile, Peru, the Democratic Republic of Congo, and Australia.