Synthetic opal (Polymer Impregnated) is impregnated in laboratory.

Characteristics of Kyocera opals  (Impregnated synthetic opal)

• Resin is impregnated

• hard to break, hard to chip

• Less inclusion and crack

• Plentiful color variation

• Large area and considerable thickness of rough stone (maximum thickness:20mm)

Chemical Composition: SiO2.nH2O+Resin (Natural:SiO2.nH2O)
Hardness: 4 (Natural: 5.5)
Specific Gravity: 1.80-1.90 (Natural:1.98-2.20)
Heat Resistance: 130 degree C.(Natural:100 degree C.)

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