Calcium bentonite clay is an absorbent kind of clay that typically forms after volcanic ash ages. calcium bentonite clay is found all over the world. â?¢ Used in the animal feed industry as a binder to absorb these toxins and cleanse the body of these harmful elements. â?¢ Used in mixing with high permeable agricultural soil to decrease the soil seepage and save the amount of water used. â?¢ Used as a sealant layer and a binder in the landfills. â?¢ Used in Ceramic industry. â?¢ Calcium bentonite clay is also a popular ingredient in skincare products. Packaging : Calcium bentonite is available in 25 kg paper sacks and 1 ton jumbo bag.