Roasted bentonite granules & gypsum balls. Processed from top grade bentonite deposits, these granules are extensively demanded for soil applications and used as bio organic liquid formulations, growth promoters, carrier of pesticides and humic acids. For better absorption in soil, these granules are roasted twice. The roasted bentonite granules offered by us is delivered at the customers' premises in stipulated time-period.We manufacture best and superior quality. The size of black granuls product are 10*20, 12*25, 16*35 technical details:particulars contents appearance granular colour -black liquid holding capacity 15-20% bulk density 1-1.2 gm/ml chemical properties silica (sio2) : min. 36.45% iron (fe2o3) : min. 16.74% magnesium (mgo) : min. 2.77% manganese (mn) : traces calcium (cao) : min 10.81%. we will wait your reply and we expect your best co-operation.