Section 13 ARTICLES OF STONE, PLASTER,CEMENT,ASBESTOS, MICA OR SIMILAR MATERIALS; CERAMIC PRODUCTS; GLASS AND GLASSWARE 69 CERAMIC PRODUCTS. 69 03 THAN THOSE OF SILICEOUS FOSSIL MEALS OR OF SIMILAR SILICEOUS EARTHS. 69 03 90 OTH.REFRACTORY CERAMIC GOODS, OTHER THAN THOSE OF SILICEOUS FOSSIL MEALS.. Commodity Code Description 69 03 90 00 OTH.REFRACTORY CERAMIC GOODS, OTHER THAN THOSE OF SILICEOUS FOSSIL MEALS..