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>Mexican Opal>Multi-coloredCabochonsMexican OpalMulti-colored14x10mmOval10mmManmadehttp://www.firemountaingems.com/itemdetails/h203222cbH203222CBCabochon, Mexican "opal" (silica and epoxy) (man-made), 14x10mm calibrated oval. Sold individually.//image1.fmgstatic.com/images/p3222cbb.jpg21.4921.49As Low As $11.36 per cabochon