Rock Identifier
Turquoise bracelet (Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O) — gemstone
gemstone

Turquoise bracelet

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O

AI-generated identification · may be incorrect

Opaque blue-green beads with a waxy to dull luster; Mohs hardness 5–6; triclinic crystal structure. The visible beads appear shaped and polished; metal bracelet components are not geological material.

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Physical properties

Opaque blue-green beads with a waxy to dull luster; Mohs hardness 5–6; triclinic crystal structure. The visible beads appear shaped and polished; metal bracelet components are not geological material.

Formation & geological history

Turquoise forms when copper-bearing water alters aluminum- and phosphorus-rich rocks, typically in arid-zone deposits. Deposits occur in rocks of many ages; the image alone cannot establish the bracelet’s source or age.

Uses & applications

Used in jewelry and ornamental objects; turquoise is also collected as a gemstone.

Geological facts

Its color ranges from sky blue to green, and dark matrix veining may occur naturally or be absent. Imitations and stabilized or dyed turquoise are common in jewelry.

Field identification & locations

Turquoise is commonly mined in the southwestern United States, Iran, China, and elsewhere. Confirming natural versus treated material generally requires close inspection or gemological testing; color alone is not conclusive.