Product ID: 803802892
Product Name: Iolite
Price : $5.21
Weight: 0.88
Jewelry Size: 6.9 x 5 x 4.2 Mm
Shape: Oval
Color: Violet Blue
Clarity: SI
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