Mullite a)M47 Al2O3: 48-52% SiO2: 49-45% Fe2O3: 1.10% TiO2: 2.00% B.D.(min): 2.55-2.60g/ccm MULLITE: 65 Size: 0-1mm, 1-3mm, 3-5mm, 5-8mm or as the request B)M60 Chemicals: Al2O3:59%Min SiO2: 36% Fe2O3: 1.35%Max Mullite: 80% Glass: 20% Cristobalite: trace Melting point: 1750℃ Bulk density: 2.75g/ccm Size: 0-1mm, 1-3mm, 3-5mm, 5-8mm or as your reques b)M70 Chemicals: Al2O3: 69%Min SiO2: 25.5% Fe2O3: 1.5%Max Mullite: 90% Glass: 10% Cristobalite: trace Melting point: 1750℃ Bulk density: 2.85g/ccm Size: 0-1mm,1-3mm,3-5mm,5-8mm or as your request Packing: as your request