Product ID: 807239663
Product Name: Tourmaline
Price : $194.16
Weight: 2.07
Jewelry Size: 7.3 x 6.7 x 6.3 Mm
Shape: Cushion
Color: Yellow
Clarity: VSI
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