... .Resistance to high temperature, corrosion. 3.High stability. 4.made in shandong Specifications1 Zircon sand is mainly applied in ... brown and other colors, hardness 7.8, specific gravity 4.6-4.71, 1.93-2.01 refractive index, birefringence, absorb ... zirconium oxychloride, zirconium, sodium fluorozirconate, potassium, zirconium sulfate, etc.). 2012 HOT SELL zircon-sand.60-65% 80-120M Zircon Sand zirconium ...