Wollastonite on sale Variety:Glaze grade,Ceramic-Body Grade,Filler Grade Purity:90 % Formula:CaSiO3 Price:best Wollastonite Our main products are:1.Metallurgical GradeSpecification: SiO2≥ 49%,CaO≥44%,MgO≤1.7%±0.5%,Fe2O3≤0.35%, S ≤ 0.008%,P ≤ 0.008%,H2O≤0.5%,LOI≤2%200mesh,325mesh(mesh can be adjusted according to the customer's requirements)2.Filling GradeSpecification: SiO2≥ 50%,CaO≥44%,MgO≤1.8%, ...