Section 05 Mineral products 25 Salt; sulphur; earths and stone; plastering materials, lime and cement 25 13 Pumice stone; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat-treated. 25 13 20 Emery, natural corundum, natural garnet and other natural abrasives Commodity Code Description 25 13 20 00 Emery, natural corundum, natural garnet and other natural abrasives