zirconium silicate is non-toxic, tasteless, white or offwhite powder, made of high-purity zircon sand and is a good-quality and cheap opacifier, whitening agent, stabilizing agent of ceramic glaze.

zirconium silicate specification :ZrO2 64%min Fe2O3 0.10%max TiO2 0.10%max

zirconium silicate Partical size D50 is 1.3um tested by Marlven 2000.