Product ID: 807234328
Product Name: Tourmaline
Price : $199.14
Weight: 7.42
Jewelry Size: 10.7 x 10.7 x 7.8 Mm
Shape: Cushion
Color: Green
Clarity: VVS
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