Closeout No Opalescence Australian 30mm x 20mm Oval Boulder Opal Round Pendants Distinctive inverted heart pattern with

Distinctive inverted heart pattern with a smooth base — distinct from the Crown design

Un-mounted configuration allows integration into a custom bench setup

or a coarse synthetic scrubby pad

a leading stonesetting instructor in the United States

Airtact hand control handpieces integrate seamlessly to provide an intuitive

Closeout No Opalescence Australian 30mm x 20mm Oval Boulder Opal Round Pendants Distinctive inverted heart pattern withBoulder Opal is found exclusively in Queensland, Australia, where veins and patches of precious opal form within rugged brown ironstone boulders. This gem was 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 a natural reinforcement that makes Boulder Opal more resistant to cracks and fractures compared to other opal types,