petalite Al2O3:16.52-18.88% ,SiO2:68.38-76.22% ,Li2O:1.5-2.3%,CaO:0.18-0.32%, K2O:3.16-3.45%, MgO:0.33%,Fe2O3:0.08-0.13% petaliteAl2O3:16.52-18.88% ,SiO2:68.38-76.22% ,Li2O:1.5-2.3%,CaO:0.18-0.32%, K2O:3.16-3.45%, MgO:0.33%,Fe2O3:0.08-0.13%, Na2O:0.64%, Loss:2.01%. petalite