Made to emulate the look of high-quality natural opals, the universe of color and outrageous flash of man-made opal is truly captivating. All the splendor of natural opal, manufactured into a harder composite that withstands heat and cold. Comprised of approximately 80% silica with 20% added epoxy for hardness and consistency. Well calibrated to fit standard cabochon settings.
Cabochons>Other Opal Varieties>BluesCabochonsOther Opal VarietiesBlues14x10mmOval10mmManmadehttp://www.firemountaingems.com/itemdetails/h203202cbH203202CBCabochon, "opal" (silica and epoxy) (man-made), dark blue, 14x10mm calibrated oval. Sold individually.//image1.fmgstatic.com/images/p3202cbb.jpg21.4921.49As Low As $11.36 per cabochon