Section 13 ARTICLES OF STONE, PLASTER, CEMENT, ASBESTOS, MICA OR SIMILAR MATERIAL S; CERAMIC PRODUCTS; GLASS AND GLASSWARE 68 Articles of stone, plaster, cement, asbestos, mica or similar materials 68 02 Worked monumental or building stone (except slate) and articles thereof, other t Commodity Code Description 68 02 10 68 02 21 68 02 23 68 02 29 68 02 91 68 02 92 68 02 93 68 02 99