... gold vermiculite0-30um,0.3-0.65mm,0.65-1mm 20-40mesh,10-40mesh, ,0.3-1mm1.5-2.5mm,1-2mm,2-4mm,3-8mm,4-8mm, Raw ... silver vermiculite0.25-0.7mm,0.3-1mm,1-2mm,2-4mm,3-8mm ... .3-0.65mm,0.65-1mm,1-2mm 2-4mm,1-3mm,0.3-1mm,3-6mm,4-8mmExpandedsilver vermiculite 0.3-1mm ,1-2mm,2-4mm,1-3mm,3-5mm,3 ...