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7.21ct 2pcs Pair Yellow Jelly Opal with Green Fire Cabochon 14x11mm Lab Created
Impregnated Opal Lot CS964
Color: Yellow with Green fire
Type: Cut Stone
Size: 13.6x11.8x4.3mm, 14.1x11.7x3.9mm
Total weight: 7.21ct
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
Water: 0%
Polymer: 15-20%