Buyer: Quartz (bb 524s), zirconium silicate (bb zr5a), zinc oxide (bb zn38l), china clay , kaolin (powder) (bb ka00), kaolin (noodle) (bb ka00), ball clay (bb ka33), wallastonite, barium carbonate (bz 4100) , soda feldspar (xg 471sf), potash feldspar, dolomite, talc, calcium carbonate, alumina, color stains