3.42 Ct. Octagon Natural Bi Color Tourmaline Unheated
Price: $477.50
Product ID: 807231248
Product Name: Tourmaline
Price : $477.50
Weight: 3.42
Jewelry Size: 9.1 x 7.8 x 5.1 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