Kaolin is chemically classified as

ANS:B - argillaceous rock

Kaolin, Illite, Montmorillonite, Halloysite are the examples of argillaceous mineral. These are of clay origin. These minerals have plastic properties. Montmorillonite has the highest plasticity of this type and high specefic surface area compared to illite and least is kaolinite. Kaolinite is used in making china dish and mud pot etc.