Product ID: 803803968
Product Name: Iolite
Price : $8.97
Weight: 1.07
Jewelry Size: 8.7 x 4.9 x 3.3 Mm
Shape: Octagon
Color: Violet Blue
Clarity: SI2
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