Bi Color Tourmaline 2.19 Ct. Octagon Shape 7.3 x 6.4 Mm. Natural Gem Nigeria
Price: $164.72
Product ID: 807226824
Product Name: Tourmaline
Price : $164.72
Weight: 2.19
Jewelry Size: 7.3 x 6.4 x 5.2 Mm
Shape: Octagon
Color: Bi Color
Clarity: 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
