2.76 Ct. Clean Octagon Natural Bi Color Tourmaline Gem
Price: $258.05
Product ID: 807232128
Product Name: Tourmaline
Price : $258.05
Weight: 2.76
Jewelry Size: 7.1 x 7 x 5.9 Mm
Shape: Octagon
Color: Bi Color
Clarity: IF
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