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PERIDOT

           
 
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Los Angeles, CA 90014

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PERIDOT
Gemstone:
Shape:
Weight (ct):
 to
 
 
Peridot Facts 
Category Mineral
Chemical formula (Mg, Fe)2SiO4
Identification
Color Yellow, to yellow-green, olive-green, to brownish
Crystal system Orthorhombic
Cleavage Poor
Fracture Conchoidal
Mohs Scale hardness 6.5-7
Luster Vitreous (glassy)
Refractive index 1.64-1.70
Birefringence +0.036
Streak White
Specific gravity 3.2-4.3