mineral

Small tumbled blue-green stone, possibly chrysocolla or turquoise

Indeterminate copper-bearing mineral; possible chrysocolla (Cu₂H₂Si₂O₅(OH)₄·nH₂O) or turquoise (CuAl₆(PO₄)₄(OH)₈·4H₂O)

AI-generated identification · may be incorrect

Blue-green, opaque to slightly translucent, with a dull-to-waxy luster and irregular natural texture; apparent hardness may be about Mohs 2–6 depending on species. The tiny polished/tumbled form prevents reliable identification of cleavage or crystal structure.

Identified August 30, 2026More mineral →

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At a glance

Common name: Small tumbled blue-green stone, possibly chrysocolla or turquoise
Scientific name: Indeterminate copper-bearing mineral; possible chrysocolla (Cu₂H₂Si₂O₅(OH)₄·nH₂O) or turquoise (CuAl₆(PO₄)₄(OH)₈·4H₂O)
Category: mineral
Identified: August 30, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a tiny common tumbled specimen; quality natural turquoise could be $20–$200+, but this sample cannot be valued confidently.

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

Copper minerals such as chrysocolla and turquoise form in oxidized zones above copper deposits, commonly during weathering over millions of years. The specimen appears human-shaped or tumbled.

Uses & applications

Turquoise is used in jewelry and ornament; chrysocolla is mainly a collector and lapidary material. Low-grade pieces may be stabilized, dyed, or composite-treated.

Geological facts

Color alone is insufficient because several copper minerals—and dyed stones—look similar. A mineralogical identification requires a sharper image, locality, streak, hardness, and ideally chemical testing.

Field identification & locations

Common sources include Arizona, Nevada, New Mexico, Chile, Peru, Iran, and Australia. Turquoise is typically opaque with a waxy surface and may show dark matrix; chrysocolla is often softer and more mottled.