... , 1-4mm ,3-6mm Packing:100liter bags 1.Size:Perlite Sand, Unexpanded Perlite: 12-16mesh, 14-20mesh, 16-32mesh, 20-40mesh, 30mesh ... -50mesh, 50-150mesh, 200-325meshExpanded Perlite: 60mesh, 100mesh, 120mesh, 150mesh, 0.1-1mm, 1-2mm, 2 ... -2mm, 2-4mm, 1-4mm ,3-5mm.2.Perlite chemicalsSiO2Al2O3Na2OK2OFe2O3MgOCaOLoss on ignition (chemical/combined water)70-75%12-15% ...