鋁(Al2O3)35.7%,白度90.7,燒失11.3%,鐵(Fe2O3)0.21%,鈣(CaO)0.25%,鎂(MgO)0.13%,鈦(Ti2O)0.01%,鉀(K2O)2.46%,鈉(Na2O)0.06%,硅(SiO2)49.78%