Section 05 MINERAL PRODUCTS 25 Salt; sulphur; earths and stone; plastering materials, lime and cement 25 06 Quartz (other than natural sands); quartzite, whether or not roughly trimmed or 25 06 20 Commodity Code Description 25 06 20 00 25 06 20 10 Merely cut by sawing or otherwise, into blocks or slabs of a rectangular (including 25 06 20 90 Other