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 VarietiesBlues6x4mmOval4mmManmadehttp://www.firemountaingems.com/itemdetails/h203198cbH203198CBCabochon, "opal" (silica and epoxy) (man-made), dark blue, 6x4mm calibrated oval. Sold per pkg of 2.//image1.fmgstatic.com/images/p3198cbb(3).jpg6.236.23As Low As $1.28 per cabochon