... , 40-60mesh, 60-80mesh, 200 mesh, 325mesh Raw expanded vermiculite Vermiculite is a natural mineral that ... hydrated magnesium aluminium silicate.Vermiculite, in its exfoliated (expanded) form, is lightweight, noncombustible, compressible, highly ... Horticulture6. Refractory & high temperature insulation7. Friction linings8. Special coatings, gaskets & seals9. Swimming pool liners10. Packing material11 ...