
gemstone
Faceted green gemstone, possibly peridot
Uncertain from the image; peridot is gem-quality olivine, (Mg,Fe)₂SiO₄
AI-generated identification · may be incorrectOval faceted cut with olive-green color and vitreous luster. If peridot, hardness is 6.5–7 Mohs and its crystals belong to the orthorhombic system; image alone cannot confirm identity or treatments.
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Physical properties
Oval faceted cut with olive-green color and vitreous luster. If peridot, hardness is 6.5–7 Mohs and its crystals belong to the orthorhombic system; image alone cannot confirm identity or treatments.
Formation & geological history
Natural peridot forms in mafic and ultramafic igneous rocks and some meteorites; gem deposits commonly occur in volcanic rocks. The image does not establish the stone’s age or whether it is natural or synthetic.
Uses & applications
Faceted gemstones are used in jewelry and collections; peridot is also used as an industrial mineral in limited applications.
Geological facts
Peridot is the gem variety of olivine, and its color comes chiefly from iron within the crystal structure.
Field identification & locations
Color and cut are not sufficient for identification; gemological testing of refractive index, birefringence, and inclusions is needed. Peridot is found notably in Arizona, Pakistan, Myanmar, and the Red Sea region.
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