... ≤0.10%≤0.10%≤0.20%≤0.30% 2. Introduction Pure zircon sand is usually colorless and transparent crystal state, Quartet ... small amount of Fe2O3, CaO, Al2O3, and other impurities, theoretically pure zircon sand containing 67.23% ZrO2 and 32.77% SiO2 ... dioxide, zirconium oxychloride, zirconium, sodium fluorozirconate, potassium, zirconium sulfate, etc.). High quality Zirconium Sand with best price