Product ID: 803804236
Product Name: Iolite
Price : $7.65
Weight: 0.76
Jewelry Size: 9.1 x 5.9 x 2.8 Mm
Shape: Pear
Color: Violet Blue
Clarity: VVS
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