we sell vermiculite(expanded vermicuilte,silvery vermiculite, golden vermiculite), perlite(expanded perlite, perlite ore), mica(muscovite,phologopite,biotite), barite,pumice, volcanic, zeolite,calcium carbonate and other non-metallic in china, our mine is in LINGSHOU ,hebei province, we have the largest expansion furnace in lingshou country,we produce various sizes of vermiculite ,perlite to satisfied customers.wecome all the guests from home and abroad to our factory for site visit.