Product ID: 818726818
Product Name: Opal
Price : $44.50
Weight: 3.75
Jewelry Size: 18.1 x 8.3 x 2.7 Mm
Shape: Free Form Cabochon
Color: Multi Color
Clarity: Opaque
Luster: Good
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