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12.57ct 3pcs Set Red Jelly Opal with Orange Fire Cabochon 15x13mm Lab Created
Impregnated Opal Lot CS958
Color: Red with Orange fire
Type: Cut Stone
Size: 15.6x13x3.9mm, 15.8x13x3.7mm, 16x12.7x3.6mm
Total weight: 12.57ct
Classification: Lab Grown Opal Polymer Impregnated
Chemical composition: SiO2 + nH2O + Resin (15-20%)
Hardness (Mohs): 4
Specific Gravity: 1.88-1.92
Heat Resistance: 140 C
Resistance to Chemicals: Alcohol – Pass; Acetone - NG
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