0.89 Ct. Octagon Natural Gem Bi Color Tourmaline Unheated
Price: $37.62
Product ID: 807246077
Product Name: Tourmaline
Price : $37.62
Weight: 0.89
Jewelry Size: 7 x 4.6 x 3.2 Mm
Shape: Octagon
Color: Bi Color
Clarity: SI1
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