1.fused and stabilized Zircon sand: 2.Resistance to high temperature, corrosion. 3.High stability. 4.made ... .25%TiO2≤0.10%≤0.10%≤0.20%≤0.30%2. Introduction Pure zircon sand is usually colorless and transparent crystal ... 7.8, specific gravity 4.6-4.71, 1.93-2.01 refractive index, birefringence, absorb light directly; magnetic susceptibility low, non ...