... 0.08%≤0.10%≤0.20%≤0.25%TiO2≤0.10%≤0.10%≤0.20%≤0.30% 2. Introduction Pure ... normally because of the different Country of Origin with the different types and quantity of impurities, resulting ... 7.8, specific gravity 4.6-4.71, 1.93-2.01 refractive index, birefringence, absorb light directly; ... zirconium, sodium fluorozirconate, potassium, zirconium sulfate, etc.). High quality Zirconium Sand with best price