gemstone

Blue-green polished stone (possibly turquoise)

Uncertain from the image; turquoise is hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

AI-generated identification · may be incorrect

A small, smooth, opaque blue-green piece is visible, but the image is too stylized and blurred to confirm its mineral identity or assess hardness, luster, or crystal structure. Turquoise is typically Mohs 5–6, waxy to dull, and massive rather than visibly crystalline.

Identified September 23, 2026More gemstone →

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At a glance

Common name: Blue-green polished stone (possibly turquoise)
Scientific name: Uncertain from the image; turquoise is hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O
Category: gemstone
Identified: September 23, 2026
Method: Standard

AI Estimated Value

Not reliably estimable from this image; small common turquoise pieces may sell for roughly $5–$50, depending on authenticity, quality, and treatment.

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

If turquoise, it forms through near-surface alteration of copper-bearing rocks in dry climates; deposits range from young weathering zones to ancient host rocks. The image does not establish the specimen’s age or origin.

Uses & applications

Turquoise is used in jewelry, ornament, and collecting; other blue-green stones have different uses.

Geological facts

Color alone is not diagnostic: turquoise, dyed minerals, and other blue-green materials can look similar.

Field identification & locations

A clearer photograph and tests such as hardness, streak, and specific gravity are needed for identification; common turquoise sources include the southwestern United States, Iran, and China.