Section 13 Articles of stone, plaster, cement, asbestos, mica or similar materials; ceramic products; glass and glassware 69 Ceramic products 69 01 Bricks, blocks, tiles and other ceramic goods of siliceous fossil meals (for example, kieselguhr, tripolite or diatomite) or of similar siliceous earths. Commodity Code Description 69 01 00 Bricks, blocks, tiles... of siliceous fossil meals or earths