IPA: /ˈbɛntənaɪt/
KK: /ˈbɛntəˌnaɪt/
A type of clay that can absorb water and is made from volcanic ash. It is often used in products like adhesives, cements, and ceramics.
Bentonite is commonly used in drilling fluids to help stabilize the borehole.
Bentonite is derived from the name of Fort Benton, Montana, where the clay was first identified, combined with the suffix '-ite' (meaning a mineral or rock). The word refers to a type of clay that is primarily composed of montmorillonite, a mineral that swells when wet.
Think of Fort Benton as the place where this special clay was discovered, and remember that '-ite' indicates it's a mineral. This helps you connect the name 'bentonite' to the clay found there.