mineral

Polished chrysocolla-matrix stone (probable)

Chrysocolla, hydrated copper aluminosilicate; likely mixed with quartz, turquoise, or copper minerals

AI-generated identification · may be incorrect

Blue-green to gray mottling with a dull-to-waxy polished luster; typically amorphous, hardness about 2.5–4, with no distinct cleavage. Exact properties vary greatly because commercial specimens are commonly mineral mixtures or stabilized composites.

Identified August 24, 2026More mineral →

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At a glance

Common name: Polished chrysocolla-matrix stone (probable)
Scientific name: Chrysocolla, hydrated copper aluminosilicate; likely mixed with quartz, turquoise, or copper minerals
Category: mineral
Identified: August 24, 2026
Method: Standard

AI Estimated Value

Approximately $5–$25 for a small polished specimen; $30–$100+ for unusually vivid, natural, or high-quality stabilized 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 copper mineral in oxidized zones of copper deposits, often replacing or coating host rock; commonly Cenozoic to older, depending on the deposit.

Uses & applications

Used for cabochons, tumbled stones, carvings, and ornamental objects; too soft and variable for most durable jewelry unless stabilized.

Geological facts

The blue-green color comes from hydrated copper-bearing minerals. Chrysocolla is frequently confused with turquoise, but it is generally softer and more vitreous-to-waxy rather than opaque, hard, and porcelain-like.

Field identification & locations

Look for irregular blue-green patches, coppery green hues, low hardness, and association with quartz or dark matrix; avoid acids and prolonged soaking. Common sources include Arizona, Nevada, Chile, Peru, Mexico, and the Democratic Republic of the Congo.