mineral

Green copper-mineral specimen, likely chrysocolla or copper-bearing serpentine

Tentatively chrysocolla (hydrated copper phyllosilicate, approximately (Cu,Al)2H2Si2O5(OH)4·nH2O); exact identification requires testing

AI-generated identification · may be incorrect

Pale blue-green, dull to earthy luster, massive/botryoidal texture, no obvious crystal faces or cleavage; Mohs hardness commonly 2–4 for chrysocolla, with variable density. Brown patches may be iron oxides or matrix.

Identified August 11, 2026More mineral →

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At a glance

Common name: Green copper-mineral specimen, likely chrysocolla or copper-bearing serpentine
Scientific name: Tentatively chrysocolla (hydrated copper phyllosilicate, approximately (Cu,Al)2H2Si2O5(OH)4·nH2O); exact identification requires testing
Category: mineral
Identified: August 11, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a small common rough fragment; $20–$100+ for vivid, well-patterned, lapidary-grade material.

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 mineral in the oxidized zones of copper deposits, commonly with malachite, azurite, quartz, and limonite; generally geologically young relative to the host ore, with no age determinable from the photograph.

Uses & applications

Used as a minor copper ore and ornamental or lapidary material; attractive pieces may be polished, though this rough fragment appears chiefly collectible.

Geological facts

Chrysocolla’s color ranges from turquoise-blue to apple green and can resemble turquoise, planchéite, or weathered serpentine. It is often soft, porous, and easily scratched.

Field identification & locations

Common localities include Arizona, Nevada, Chile, Peru, the Democratic Republic of Congo, and Australia. Confirm with a hardness test, streak, specific gravity, and ideally Raman/XRF analysis; avoid acid and destructive testing.