gemstone
Peridot
Olivine ((Mg,Fe)2SiO4)
Hardness: 6.5-7 on the Mohs scale, Color: Olive green to yellowish-green, Luster: Vitreous (glassy), Crystal Structure: Orthorhombic, Cleavage: Poor, Specific Gravity: 3.27-3.48
- Hardness
- 6
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Physical properties
Hardness: 6.5-7 on the Mohs scale, Color: Olive green to yellowish-green, Luster: Vitreous (glassy), Crystal Structure: Orthorhombic, Cleavage: Poor, Specific Gravity: 3.27-3.48
Formation & geological history
Formed deep within the Earth's mantle in igneous rocks like peridotite, and brought to the surface by volcanic activity or tectonic movement. It also can be found in certain types of pallasite meteorites.
Uses & applications
Used primarily as a gemstone in jewelry (rings, earrings, necklaces) and for mineral collections.
Geological facts
Peridot is one of the few gemstones that occurs in only one color (green). Some peridot crystals have even been found in meteorites, making them extraterrestrial gems.
Field identification & locations
Easily identified by its characteristic olive-green color and vitreous luster. Found in regions such as Arizona, Myanmar, Pakistan, and China.
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