Item Code: OPL003
Metric Dimensions: 48 x 22 x 10 mm
Imperial Dimensions: 2” x 7/8” x 3/8”
Weight: 75 carats (15 grams)
A free-form Boulder Opal cabochon with patches of fossilized host rock and flashes of purple and turquoise precious opal. Boulder Opal forms within cavities of ironstone boulders and fossilized sandstone. It was formed when silica-rich water seeped down into fissures of the host rock and slowly solidified into spheres of opal over millions of years.