... Chemical Composition(%) Grit SizeAl2O3TiO2SiO2Fe2O3CaOMgOF4-F8095.0-96.0 2.0-3.8 0.9 0.150.35 0.5F90-F15094.5-95 ... densityg/cm33.90minParticle densityg/cm39.00minGrain sizesmm0-1 1-3 3-5 5-8 Physical characteristics Basic MineralAl2O3Crystal SysemHexagonalColourBrownTrue Density3.90g/cm3 ... : Abrasives F12-F1200,P12-P2500Refractory 0-1mm,1-3mm,3-5mm,5-8mm,200mesh,325mesh Applications:1.Coated and bonded ...