Illite

Illite is a common type of clay mineral found in soils and sediments. It consists of tiny particles made up of layered silicate structures, which give it good ability to retain water and nutrients. Illite is relatively stable and does not swell much when wet, making it important for soil fertility and stability. It also plays a role in shaping the earth's crust and forming rocks. Because of its properties, illite is used in industries like ceramics, drilling, and as a component in many soil and construction materials.