Blue Tourmaline 0.19 ct/ 4 pcs
EB3187Product Details
Stone type: Tourmaline
Weight: 0.19 ct / 4 pcs
Color: Blue
Dimension: 3.38 x 3.38 x 1.54 mm,
2.27 x 2.27 x 1.54 mm
2.31 x 2.31 x 1.62 mm
2.22 x 2.22 x 1.57 mm
Shape & Cut Round, 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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