origin: Xinjiang in China. white vermiculite size:
0.**1mm/**2.0mm,/2.**4.0(any size can make as your request) origin:
Hebei province in China Golden vermiculite: size:hg*3/4 (any size
can make as your request) SiO2 *1% Al2O3 *8% MgO *1% CaO 0.8% Fe2O3
3.5% impurity 3% max. PH ****1