1.Expanded vermiculite color:silver and gold 2.Size:as client's demands 3.Origin:Hebei, ... , poisonless, odorless, low hardness, burning-avoidness, lighter,etc 2.Expanded vermiculite size Expandedgolden vermiculite0.3-0.65mm,0.65 ... -1mm,1-2mm 2-4mm,1-3mm,0.3-1mm,3-6mm,4 ... 150mesh 500mesh 600mesh Expandedsilver vermiculite0.3-1mm ,1-2mm,2-4mm,1-3mm,3-5mm,3-6mm,4-8mm325meh ...