Bi Color Tourmaline 1.47 Ct VVS Octagon Shape 6.1 x 5.7 Mm. Natural Gem Unheated
Price: $97.77
Product ID: 807234661
Product Name: Tourmaline
Price : $97.77
Weight: 1.47
Jewelry Size: 6.1 x 5.7 x 4.5 Mm
Shape: Octagon
Color: Bi Color
Clarity: VVS - VSI
Luster: Good
Origin: Nigeria
Treatment: Unheated
Crystal Structure: Trigonal
Hardness: 7 - 7.5
Specific Gravity: 3.0+
Refractive Index: 1.62 - 1.68
Chemical: Na(Li,Al)3Al6(B03)3 Si6O18(OH)4
