mineral

Raw turquoise-bearing rock

Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O, likely in a quartz/host-rock matrix

AI-generated identification · may be incorrect

Blue-green, opaque, typically waxy to subvitreous luster; Mohs hardness 5–6, triclinic structure, no prominent cleavage, and specific gravity about 2.6–2.9. The specimen appears as blue-green material with pale gray matrix and possible iron staining.

Identified September 17, 2026More mineral →

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At a glance

Common name: Raw turquoise-bearing rock
Scientific name: Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O, likely in a quartz/host-rock matrix
Category: mineral
Identified: September 17, 2026
Method: Standard

AI Estimated Value

Approximately $5–$30 for a small rough matrix specimen; exceptional natural, vividly colored material may sell for $50–$300+.

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 phosphate mineral in arid, oxidized copper deposits, commonly replacing aluminum-rich rocks; deposits are generally geologically young relative to their host rocks, often Cenozoic or older weathering zones.

Uses & applications

Used as a gemstone, cabochon, bead, inlay, and collectible mineral; lower-grade matrix material is often polished for ornamentation.

Geological facts

Turquoise color ranges from sky blue to green depending largely on copper, iron, and zinc content. It is commonly stabilized or dyed commercially, so untreated status affects value.

Field identification & locations

Common localities include Iran, southwestern United States, China, Egypt, and Mexico; identify it by blue-green color, waxy appearance, moderate hardness, and copper-rich host associations. Avoid acids and prolonged soaking.