Smectite

Smectite is a type of clay mineral with layered structures that can absorb water and swell significantly. It’s commonly found in soils and sediments, where it influences properties like plasticity and permeability. Its unique ability to expand when wet makes it useful in applications like drilling mud, as a binder in products, and in sealing systems. Because of its high surface area and water affinity, smectite also plays a role in environmental processes, such as pollutant adsorption and soil stabilization. Overall, it’s a versatile mineral valued in both natural and industrial contexts for its absorbent and swelling characteristics.