Closeout No Opalescence Australian 10mm x 8mm Oval Boulder Opal Speed Brite NEXT-GEN 2 controls: LED bar-graph

NEXT-GEN 2 controls: LED bar-graph indicators and variable control knobs for heat and time

visible presentation

and related workshop applications

The slitted design provides outstanding visibility of the workpiece during polishing

Closeout No Opalescence Australian 10mm x 8mm Oval Boulder Opal Speed Brite NEXT-GEN 2 controls: LED bar-graphBoulder 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, depositing it into natural cavities within the ironstone. The ironstone backing provides natural reinforcement that makes Boulder Opal more resistant to cracks and fractures compared to other opals. This