... .Welcome clients from all over the world visiting and cooperating. expanded golden vermiculite for construction purpose 1.Features Fireproof, heat insulating, sound ... weight, non-toxic, odorless, non-abrasive, etc.. 2.Size Golden/Silver Vermiculite1-3mm,2-4mm,3-8mm,4-8mm,10-20mesh ... .PricePrice is negotiable based on specification, quantity, delivering time etc. Expanded Vermiculite