gemstone

Tumbled turquoise-colored stone pendant

Undetermined; possibly dyed howlite or magnesite, or turquoise

AI-generated identification · may be incorrect

Opaque, pale blue-green polished cabochon with dark matrix-like veins, set in a metal bail. Hardness and crystal structure cannot be determined from the image; natural turquoise is Mohs 5–6, while howlite is about 3.5.

Identified September 24, 2026More gemstone →

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Physical properties

Formation & geological history

The stone’s identity and geological age cannot be established visually. Turquoise forms when copper-bearing fluids alter aluminum-rich rocks in arid environments; howlite and magnesite form through other mineral processes and are often dyed to imitate it.

Uses & applications

Worn as jewelry or collected as a pendant; turquoise is also used for ornamental inlay.

Geological facts

Blue-green color and dark veining are not sufficient to distinguish genuine turquoise from common dyed imitations.

Field identification & locations

Check for uneven color concentration in cracks and scratches, and have a gemologist test hardness and composition; genuine turquoise commonly comes from the southwestern United States, Iran, and China.