Unheated 1.80 Ct. Octagon Natural Gem Bi Color Tourmaline
Price: $58.25
Product ID: 807234232
Product Name: Tourmaline
Price : $58.25
Weight: 1.80
Jewelry Size: 6.6 x 6 x 4.6 Mm
Shape: Octagon
Color: Bi Color
Clarity: SI
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