Some facts about this gorgeous August Birthstone:
4.5 billion
Some peridot is ancient: it's found in pallasite meteorites, remnants of our solar system's birth.
Stardust
In 2005, peridot was found in comet dust brought back from the Stardust robotic space probe.
Olivine
Gem variety of the mineral olivine: found in peridotite rock from the earth’s upper mantle.
Facts
- Mineral: Olivine
- Chemistry: (MgFe)2SiO4
- Color: Yellowish green
- Refractive index: 1.65 to 1.69
- Birefringence: 0.035 to 0.038
- Specific gravity: 3.34
- Mohs Hardness: 6.5 to 7
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