Product ID: 803804497
Product Name: Iolite
Price : $11.25
Weight: 1.35
Jewelry Size: 8.2 x 5.9 x 4 Mm
Shape: Octagon
Color: Violet Blue
Clarity: VSI
Luster: Good
Origin: Madagascar
Treatment: Unheated
Crystal Structure: Orthorhombic
Hardness: 7 - 7.5
Specific Gravity: 2.3
Refractive Index: 1.52 - 1.57
Chemical: Mg2Al4Si5O18, Magnesium Aluminum Silicat