Bentonite clay sodium and calcium bentonite | LKAB Minerals®
Bentonite is derived from volcanic ash and consists predominately of smectite minerals usually Montmorillonite. We categorise this product as a sedimentary deposit containing >50% Montmorillonite which is volcanic in origin. Montmorillonite is a dioctedral layer silicate and in sodium form swells when mixed with water to form dispersed ...