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Tradition
MONTH: August
ANNIVERSARY: 16th
ZODIAC: Libra
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Chemistry
MINERAL: Olivine
CHEMICAL COMPOSITION: (MgFe)2SiO4
COLOR: Pale Greens
REFRACTIVE INDEX: 1.65 to 1.69
SPECIFIC GRAVITY: 3.34
MOHS HARDNESS: 6.5 to 7
WHY WE LOVE PERIDOT
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Extraterrestrial
Peridot crystals are found in meteorites: some rare extraterrestrial crystals are even big enough to facet as cut gemstones.
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Iron Gem
Most gems are colored by impurities such as iron. Peridot's color is intrinsically yellow-green. Higher-quality stones have an intense color.
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Seeing Double
Peridot has extremely high double refraction: when you look closely through the gem, you can see two of each pavilion facet.





















