mineral

Turquoise bead bracelet

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; the beads may be stabilized or dyed

AI-generated identification · may be incorrect

Opaque blue-green, typically waxy to subvitreous luster; Mohs hardness 5–6; triclinic crystal system, though usually massive and opaque. Dark matrix veining is common; the image alone cannot confirm natural versus treated material.

Identified September 23, 2026More mineral →

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Physical properties

Formation & geological history

Turquoise forms through low-temperature alteration of aluminum-rich rocks by copper- and phosphate-bearing fluids, commonly in arid-zone deposits. Deposits range from ancient to geologically recent; the beads’ source and age are not identifiable from the photo.

Uses & applications

Used for beads, jewelry, ornament, and collectibles; lower-grade material may be stabilized or dyed for durability and color.

Geological facts

Famous sources include Iran, the southwestern United States, China, and Egypt; turquoise has been prized in jewelry for thousands of years.

Field identification & locations

Look for opaque blue-to-green color, occasional brown or black matrix, and a relatively soft, waxy surface; appearance alone cannot distinguish genuine, treated, or imitation beads. Common deposits occur in arid copper-mining regions.