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19-20gr 1pc Purple Jelly Opal with Red Fire Resin 15% Lab Created Faceting Rough Stone
Impregnated Opal Lot R1129
Color: Purple with Red fire
Type: Rough Stone
Size: 28-30x24-25x14mm
Weight: 19-20gr
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%