0.63 Ct. Nice Natural Gemstone Gray Tourmaline Round Shape
Price: $27.51
Product ID: 807246041
Product Name: Tourmaline
Price : $27.51
Weight: 0.63
Jewelry Size: 5.2 x 5.2 x 3.7 Mm
Shape: Round
Color: Gray
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