... processing. Their theoretical compositions are ZrO2 and SiO2, and a small amount of Fe2O3, CaO, Al2O3, and other impurities, theoretically pure ... dioxide, zirconium oxychloride, zirconium, sodium fluorozirconate, potassium, zirconium sulfate, etc.). 2012 HOT SELL zircon-sand.60-65% 80-120M Zircon Sand zirconium ...