Product ID: 818720220
Product Name: Opal
Price : $59.99
Weight: 10.46
Jewelry Size: 18.1 x 10.9 x 7.4 Mm
Shape: Free Form Cabochon
Color: Multi-Color
Clarity: Opaque
Luster: Iridescent
Origin: Australia
Treatment: Unheated / Untreated
Crystal Structure: Amorphous
Hardness: 5.5 - 6.5
Specific Gravity: 2.15
Refractive Index: 1.42 - 1.43
Chemical: SiO2·nH2O