3.54 Ct. Octagon Shape Natural Gemstone Bi Color Tourmaline Unheated
Price: $494.16
Product ID: 807238036
Product Name: Tourmaline
Price : $494.16
Weight: 3.54
Jewelry Size: 12.9 x 5.8 x 4.7 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
