... Vermiculite Size : Raw gold vermiculite0-30um,0.3-0.65mm,0.65-1mm 20-40mesh,10-40mesh, ,0.3-1mm1.5-2.5mm,1 ... 2-4mm,3-8mm,4-8mm, Raw silver vermiculite0.25-0.7mm,0.3-1mm,1-2mm,2-4mm,3-8mm,4-8mm ... maxAntibioticityGoodMoisture absorbency<2Corrosion resistanceAlkali-resitantwater-absorbable500-650liter/m3Thermal Conductivity0.063 - 0.069w/m °CUnder ambient conditionsExpansion ratio of silver raw vermiculite ...