We are suppliers of raw perlite and expanded perlite based turkey. We have our own mine in turkey. The specifications as follow. If you need more detailed information, please don&＃39;t hesitate to contact with us.thanks for your kind interest in advanced. place of origin : turkeyusage fields : constuction, ,agriculture,heat and sound insulation, filtertype : raw & expanded perlitesizes : 1-3mm/3-5mm/5-8 mmcolour : white & grey whitesio2 content (%) : 75%mgo content (%) : 0.20%na2o content (%) : 4%fe2o3 content (%) : 1%cao content (%) : 0.75%al2o3 content (%): 13%k2o content (%) : 4%bulk density : 80-130 kg/m3trade terms : fob, cfr, cifpayment term : t/t and lc at sightloading : 15 day