1.crude golden vermiculite 2.density:120-300kg/m3 3.Size:0. ... ,4-6mm 4.agriculture horticulture... crude golden vermiculite 1.Features Fireproof, heat insulating, sound and moisture absorbing, light weight, non-toxic, odorless ... .PricePrice is negotiable based on specification, quantity, delivering time etc. crude golden vermiculite