Green Tourmaline 2.78 cts / 3 pcs
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Product Details
Stone type: Green Tourmaline
Weight: 2.78 cts / 3 pcs
Color: Green
Dimension: 6.96 x 4.29 x 3.51 mm, 6.98 x 4.29 x 3.56 mm, 6.85 x 3.88 x 3.89 mm
Shape & Cut: Octagonal, Yavorskyy cut
Treatment: Unheated and Untreated (No Indications Observed)
Refractive Index: 1.618-1.643
Hardness: 7-7.5
Specific Gravity: 3.1
Optical properties: Doubly refractive
Chemical formula: Complex Boron Silicate
Shipment from: Thailand
Return Policy: 3 Day Money-Back Return*
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