Gilson (Non-Resin) Opal
Lot R1140
Color: Orange with Green fire
Type: Rough Stone
Size: 22x20x9mm
Weight: 8.9gr
Classification: Lab Grown Opal
Chemical composition: SiO2 + nH2O
Hardness (Mohs): 6.5
Specific Gravity: 2.2-2.25
Heat Resistance: 1200 C
Water: 0%
Polymer: 0%
