Bentonite Is a clay which belongs to smectite family. it is a finely-grained rock composed mainly of montmorillonite minerals.  There are two types of bentonite – sodium bentonite (high swelling, gelling and thermal durability) and calcium bentonite (more commonly available worldwide but with less swelling). Bentonite is mainly used in Manufacturing of paints,  Construction & Civil Engineering, Foundry, Iorn Ore Pelletization, Drilling.

Bentonite is a highly absorbent clay, its actually known as Mineral Soap and Soap Clay. Sodium Bentonite expands when wet, absorbing many times its dry mass. Because of these colloidal properties, it is often used in drilling mud in the Oil and Gas Industry and in Environmental investigations