... used in friction linings, ceramic&glaze products, metallurgy and paper making, oil paint, fibre cement based products, plastics, rubber, electric welding ... -silicate, its chemical formula is CaSiO3. Use:PA6,PP,PE Packing:800KG bagsAcicular wollastonite, as calcic metasilcate mineral, is ... ±140.5max0.8889%-93%4.58-18:1 7.Photo: High quality of Wollastonite powder