gemstone

Turquoise cabochon ring

Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O

AI-generated identification · may be incorrect

Opaque blue-green cabochon with waxy-to-vitreous luster; Mohs hardness 5–6, triclinic crystal system, typically massive rather than visibly crystalline, and no prominent cleavage. The surrounding dark metal setting is jewelry, not geological material.

Identified August 27, 2026More gemstone →

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At a glance

Common name: Turquoise cabochon ring
Scientific name: Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O
Category: gemstone
Identified: August 27, 2026
Method: Standard

AI Estimated Value

Approximately $10–$75 for common commercial turquoise jewelry; $100–$1,000+ for high-grade natural turquoise, depending on provenance, color, matrix, workmanship, and metal.

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

Turquoise forms as a secondary mineral in arid, oxidized copper deposits, commonly replacing aluminum- and phosphate-bearing host rocks; most deposits are Cenozoic to relatively young geologically. The image cannot establish whether this is natural, stabilized, dyed, or reconstituted turquoise.

Uses & applications

Used extensively in jewelry, ornament, carvings, and inlay; prized for its blue-green color and matrix patterns. It is not used structurally or industrially at significant scale.

Geological facts

Natural turquoise commonly shows brown, black, or gray matrix and may have a porous surface; stabilization with resin is widespread. Color can deepen or change with oils, cosmetics, and prolonged wear.

Field identification & locations

Common sources include Iran, Arizona and Nevada (USA), China, Mexico, Chile, and Tibet. Field identification relies on opaque color, waxy luster, moderate softness, and copper-related blue-green hues; definitive testing requires gemological examination.