Kaolin is an important raw material in the manufacture of ceramics, many types of clay is pure mineral kaolinite (kaolinite) is a mineral with a crystalline exact chemical composition is as important as oxides of silicon and aluminum, with the chemical formula is Al2O3 2SiO2 2H2O consists of SiO2 hundred. 46.3 Al2O3 and H2O at 39.8 percent, 13.9 percent by mass of clay found in many provinces of Thailand such as Bangkok, Lampang, Uttaradit, Nakhon Si Thammarat, Ranong, Surat Thani.
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