Synthetic Opal Stones 

We have two kinds of synthetic opal available. The first one is an opal imitation, the plastic impregnated opal. It is available in pieces weighing 20-100 g. The other variety is synthetic opal, the chemical composition and physical properties of which are quite similar to the Gilson Synthetic Opal. However, it does not have the “lizard skin” effect - a specific identification property for the Gilson Synthetic Opal. Synthetic opal is available in pieces of 2-40 g.

SYNTHETIC OPAL STONES PROPERTIES:

CHEMICAL COMPOSITION: silica-97-99%, zirconia-1-3%
CRYSTAL SYSTEM: AMORPHOUS
HARDNESS MOH'S: 6.00
REFRACTIVE INDEX: 1.46 - 1.47
SPECIFIC GRAVITY: Average 2.15



Synthetic Opal Stones 

 
 




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