KAOLIN is one of the more important industrial clay minerals. Kaolin is comprised predominantly of the mineral kaolinite, a hydrated aluminum silicate. Kaolinite, which is the dominant mineral in kaolin deposits, is a common clay mineral, but the relatively pure and commercially useable deposits are few in number. Kaolinite has physical and chemical properties which make it useful in a great number of applications. One of the most important applications of kaolin is coating and filling paper. As filler, the kaolin is mixed with the cellulose fibers in wood pulp and as a coating; the kaolin is mixed with water, adhesives, and various additives and coated onto the surface of the paper. The coating makes the paper sheet smoother, brighter, glossier, more opaque, and most importantly, improves the printability. Paper that is not coated is made up of cellulose fibers interwoven in a random and open configuration