Bentonite

Bentonite is a type of clay formed from volcanic ash, notable for its ability to swell when mixed with water. It has unique properties that make it useful in various applications, such as drilling mud in oil and gas extraction, a binding agent in foundry sands, and an ingredient in cosmetics. Bentonite can also be used in environmental applications, like sealing landfills due to its impermeability. Its natural absorbent qualities enable it to retain moisture and nutrients, making it valuable in agriculture as well. Overall, it is a versatile and important material across multiple industries.