Kaolin

Zirconium silicate is a raw material used in porcelain, earthenware, sanitary, mainly as an opacifier between 4% and 15% and as a refractory material.

It has a fine grain, an ideal distribution, high brightness, strong hiding power. It has strong wear resistance and gives a bleaching effect.
Zirconium silicate with high refractive index 1.93-2.01, stable chemical property.