Section 05 MINERAL PRODUCTS 25 Salt; sulphur; earths and stone; plastering materials, lime and cement 25 08 Other clays (not including expanded clays of heading 68.06), andalusite, kyanite 25 08 10 25 08 10 00 Commodity Code Description 25 08 10 00 00 - Bentonite 25 08 30 00 00 - Fire-clay 25 08 40 00 00 - Other clays 25 08 50 00 00 - Andalusite, kyanite and sillimanite 25 08 60 00 00 - Mullite 25 08 70 00 00 - Chamotte or dinas earths