gemstone

Turquoise bead bracelet

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

AI-generated identification · may be incorrect

Blue to blue-green, typically opaque with waxy-to-subvitreous luster; Mohs hardness 5–6, triclinic structure, poor cleavage, and specific gravity about 2.6–2.9. The beads appear polished and may include matrix, stabilization, dye, or imitation material.

Identified September 14, 2026More gemstone →

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At a glance

Common name: Turquoise bead bracelet
Scientific name: Turquoise, hydrated copper aluminum phosphate — CuAl₆(PO₄)₄(OH)₈·4H₂O
Category: gemstone
Identified: September 14, 2026
Method: Standard

AI Estimated Value

About $10–$100 for a typical bracelet with stabilized or common turquoise; $200–$2,000+ for verified natural, high-grade turquoise from notable deposits.

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 aluminous rock; deposits are generally Cenozoic to older, depending on locality. Major sources include Iran, the southwestern United States, Mexico, China, and Egypt.

Uses & applications

Used extensively in jewelry, carvings, beads, and ornaments; exceptionally fine natural turquoise is collectible. Stabilized or reconstructed turquoise is common in commercial jewelry.

Geological facts

Natural turquoise commonly shows brown, gray, or black host-rock matrix and can vary from sky blue to green. Copper produces the blue coloration, while iron and zinc commonly shift it toward green.

Field identification & locations

Identify it by its opaque blue-green color, relatively low hardness, waxy surface, and density; a plastic-like lightness or perfectly uniform color suggests imitation. Individual bead quality and treatment strongly affect value.