... , 1.93-2.01 refractive index, birefringence, absorb light directly; magnetic susceptibility low, non-conductive; the melting point of 2550 °C ... , then will get zircon sand after the water, electrostatic, and magnetic separation processing. Their theoretical compositions are ZrO2 and SiO2, and ... , sodium fluorozirconate, potassium, zirconium sulfate, etc.). High quality Zirconium Sand with best price