Size: 3x6mm
Colour: Olivine
Shape: MQ
SKU: SP0059
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About Peridot
-It is birthstone for the month of August.Peridot is sometimes mistaken for emeralds and other green gems. And in the ancient world, mining of peridot, called topazios then, on St. John's Island in the Red Sea began about 300 B.C.Gemstone Peridot has only one color--Olive(a dark yellowish-green color, like that of unripe or green olives).The formula approaches Mg2SiO4.
Name: | Peridot |
Colour: | Olivine |
Chemical formula: | (Mg,Fe)2[SiO4] |
Density: | 3.3-3.5 |
Proportion: | 3.34(+0.14,-0.07) |
Absorption spectrum: | 453nm、477nm and 497nm |
Refractive index: | 1.654-1.690 |
Hardness: | 6.5-8 |
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