gemstone
Tumbled turquoise-colored stone pendant
Undetermined; possibly dyed howlite or magnesite, or turquoise
AI-generated identification · may be incorrectOpaque, 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.
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Physical properties
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.
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.
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