gemstone
Peridot
Forsterite-Fayalite (Olivine group), (Mg,Fe)2SiO4
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, distinct olive-green color, vitreous luster, and orthorhombic crystal system.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, distinct olive-green color, vitreous luster, and orthorhombic crystal system.
Formation & geological history
Forms deep within the Earth's mantle in igneous rocks and is brought to the surface via tectonic activity or volcanic eruptions.
Uses & applications
Primarily used as a gemstone in fine jewelry, rings, and earrings.
Geological facts
Peridot is one of the few gemstones that occurs in only one color (green) and is sometimes found in pallasite meteorites.
Field identification & locations
Identified by its characteristic olive-green hue and double refraction; commonly sourced from Arizona, Pakistan, and China.
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