1.Bulk density(g/cm3):1.35-1.4 2.Size:3,6,10,13,19,25,38, ... >93>94>99Al2O3 (%)17-2323-3047-5690-9399Fe2O3 (%)<1<1<1<1<1CaO (%)<0.5<1.5<2<40.2MgO (%)<0.5<2.5<0 ... .1<0.001<0.001 Water Absorption (%)<0.5<0.2<2<32.0-6.0Bulk Density (g/cm3)1.35-1.401.35-1 ... .401.35-1.451.8-2.01.8-2.0Operation ... 54>0.56>0.44>11/2 inch (13mm)>1.5>1.67>1.56>1.99>33/4 inch (19mm)>4.15>4 ...