gemstone

Turquoise bead necklace

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; likely stabilized or imitation beads cannot be ruled out from the image

AI-generated identification · may be incorrect

Opaque blue-green beads with dark matrix-like veining and polished surfaces; turquoise is Mohs 5–6, waxy to subvitreous, and triclinic. Necklace findings and possible treatments are not geological material.

Identified October 9, 2026More gemstone →

Explore Turquoise bead necklace in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

At a glance

Common name: Turquoise bead necklace
Scientific name: Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; likely stabilized or imitation beads cannot be ruled out from the image
Category: gemstone
Identified: October 9, 2026
Method: Standard

AI Estimated Value

Approximately $10–$100 for a fashion necklace; higher values require verified natural, high-grade turquoise and craftsmanship.

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

Natural turquoise forms in arid-zone copper deposits as a secondary phosphate mineral, commonly by groundwater alteration of copper-bearing rocks. Deposits range from geologically young to ancient; the pictured beads’ source and age are unknown.

Uses & applications

Used in jewelry and decorative objects; gold-colored spacers are non-geological components.

Geological facts

Turquoise’s color comes chiefly from copper, while iron can shift it toward green. Beads are often stabilized with resin to improve durability and color consistency.

Field identification & locations

Typical turquoise is opaque and blue to green, sometimes with a dark host-rock matrix; appearance alone cannot confirm natural material or treatment. Major sources include Iran, the southwestern United States, China, and Mexico.