expanded vermiculite

ermiculite is a neutral and clean minerals , comes from the black mica through air-slake or hydrothermal alteration,which exfoliated(expanded) ,when rapidly heated above 1000. The exfoliated vermiculite like a leech and become several times bigger that its original crude vermiculite. Vermiculite color can vary slightly according to it’s origin .Our vermiculite color is golden brown and silver-grey. 1.Size: Raw vermiculite Siver vermiculite: 0.3-1mm1-2mm2-4mm3-6mm4-8mm Golden