mineral

Blue-green tumbled stone, possibly chrysocolla-bearing material

Uncertain from image; likely chrysocolla (hydrated copper silicate, variably written Cu₂H₂Si₂O₅(OH)₄·nH₂O), possibly mixed with quartz or other copper minerals

AI-generated identification · may be incorrect

Opaque, mottled turquoise-blue to green with a subdued polished luster; chrysocolla has variable hardness, roughly 2–4 Mohs, and no consistent crystal structure or cleavage. The rounded shape indicates tumbling; composition cannot be confirmed visually.

Identified October 5, 2026More mineral →

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At a glance

Common name: Blue-green tumbled stone, possibly chrysocolla-bearing material
Scientific name: Uncertain from image; likely chrysocolla (hydrated copper silicate, variably written Cu₂H₂Si₂O₅(OH)₄·nH₂O), possibly mixed with quartz or other copper minerals
Category: mineral
Identified: October 5, 2026
Method: Standard

AI Estimated Value

About $2–$15 for an ordinary small tumbled stone; more if identified, unusually vivid, or set as jewelry.

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

Chrysocolla forms as a secondary copper mineral in the oxidized zones of copper deposits, commonly coating or filling fractures; its age depends on the host deposit and is not determinable from the image.

Uses & applications

Primarily a decorative and collecting stone; harder quartz-rich material may be used in beads or small jewelry, while soft chrysocolla is more suited to display.

Geological facts

The vivid color is associated with copper, and natural specimens often occur mixed with quartz, malachite, or other copper minerals.

Field identification & locations

The blue-green color and mottling are suggestive but not diagnostic; hardness and mineral testing or provenance are needed to identify it confidently. Copper deposits worldwide produce chrysocolla, including major districts in the Americas and Africa.