Bentonite, Kaolin and Selected Clay Minerals - Paperbackby Ipcs (Author) This book examines the health effects of exposure to bentonite, kaolin, and selected clay minerals. Despite the ubiquitous exposure of the general population to low concentrations of montmorillonite and kaolinite, the main components of bentonite and kaolin respectively, and other clay minerals, no data are available on its effects. Long term occupational exposure to bentonite dust may cause structural and functional damage to the