Product ID: 107208654
Product Name: Tourmaline
Price : $439.53
Weight: 5.90
Jewelry Size: 11.8 x 7.7 x 6.8 Mm
Shape: Octagon
Color: Green
Clarity: VVS
Luster: Very 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