Birthstone Gems

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August Birthstone - Peridot


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July Leo(July 23 - Aug 22) Virgo(Aug 23 - Sep 22) September
Peridot fact file
Crystal Structure: Orthorhombic
Chemical Composition: Chrysolite or Olivene - Magnesium/Iron Silicate ( (Mg,Fe)2SiO4 )
Hardness: 6 ½ to 7 MOHS
Refractive Index: 1.654 to 1.690
Colors: Transparent yellowish-green, bottle green

Peridot, the green volcanic gem is the August birthstone.
Also nicknamed as "evening emerald", Peridot is considered to have the power to ward off evil spirits. Geologically, Peridot is composed of the mineral olivine and gets its green color from its iron component.


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