Section 13 Articles of stone, plaster,cement,asbestos, mica or similar materials; ceramic products; glass and glassware 68 Articles of stone, plaster, cement, asbestos, mica or similar materials 68 03 Worked slate and articles of slate or of agglomerated slate 68 03 00 Worked slate and articles of slate or of agglomerated slate 68 03 00 00 Worked slate and articles of slate or of agglomerated slate Commodity Code Description 68 03 00 00 000 Worked slate and articles of slate or of agglomerated slate