We can supply a series of Wollastonite Needle-like Powder Products Series such as Ceramic grade Wollastonite and Metallurgical Grade Wollastonite as well as Wollastonite non-Needle-like Powder Products Series. Bath Kaolin A3 Chemical properties Typical Guaranteed Whiteness: 87.5, 0.5 more or less, 86 Whiteness of Burning: 1000 91, 0.5 more or less Al2O3: 37.0 SiO2: 47.0 Fe2O3: 0.36 CaO: 0.15 MgO: 0.06 K2O: 1.4 Na2O: 0.06 The loss of burring: 14.0 Moisture: 30.0 wet, max. 2.0 dry Water Washed Kaolin: 200 mesh, 325 mesh SiO2: 46.35 Al2O3: 37.47 Fe2O3: 0.24 CaO: 0.43 MgO: 0.00 K2O: 1.38 Na2O: 0.24 TiO: 0.08 The loss of burring: 13.23 Moisture: 28 as below 200 mesh, Whiteness of Burning: 86-87 325 mesh, Whiteness of Burning: min. 91If you are interested in our products, welcome to contact with us! producing area:China