Bentonite, Kaolin and Selected Clay Minerals (EHC 231, 2005)
Usage of domestic production in the USA in 1995, 1999, and 2002 is summarized in Table 4. Major domestic uses, which include binding foundry sand (, in moulds for castings), absorbing grease, oil, and animal wastes, pelletizing taconite iron ore, and improving the properties of many drilling muds, were 79% of the total.