We are offering Horticultural Perlite. Horticultural Perlite Perlite could be used in building construction products, horticultural aggregate, fillers, filter aid, and insulation fields. Perlite SiO2 Al2O3 Na2O K2O Fe2O3 MgO CaO Loss on ignition (chemicalcombined water) 70-75% 12more...