Closeout Some Opalescence Australian 30mm x 20mm Oval Boulder Opal Prop 65 - Titanium Dioxide Material Anodized aluminum (natural grey)

Material Anodized aluminum (natural grey) Total Length 250 mm (9-7/8") USA Sizes 1–15 Diameter Range 13

Components manufactured in Switzerland

000 rpm Swing Over Bed 4-1/2" (114

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Closeout Some Opalescence Australian 30mm x 20mm Oval Boulder Opal Prop 65 - Titanium Dioxide Material Anodized aluminum (natural grey)Boulder Opal is found exclusively in Queensland, Australia, where veins and patches of precious opal form within rugged brown ironstone boulders. These gems were created over millions of years as rainwater dissolved silica from the earth's surface and deposited it into natural cavities within the ironstone. The ironstone backing provides natural reinforcement, making Boulder Opal more resistant to cracks and fractures compared to other opal varieties.