We are offering calcium bentonite granules. 1 silica as sio2 57.75% 2 aluminum as ai2o3 25.98% 3 iron as fe2o3 6.8% 4 calcium as cao 1.42% 5 magnesium as mgo 0.81% 6 moisture 7.03% 7 loss on ignition (loi) 13.75% 8 potassium as k2o 0.15% 9 ph of 10% solution 5.80%.