Ceramics include terra cotta, earthenware, porcelain, and stoneware products. Ceramic materials for tiles include earthenware, stoneware and porcelain. Kilns have produced earthenware, pottery, stoneware, glazed pottery, glazed stoneware, porcelain, and blue-and-white ware. Major types include earthenware, stoneware and porcelain. They are earthenware, stoneware, and porcelain. Cornish china clay was used in the production of earthenware and stoneware. Other wind chimes materials include glass, bamboo, shell, stone, earthenware, stoneware, beads, keys and porcelain. Clay-based pottery can be divided into three main groups&colon; earthenware, stoneware and porcelain. It is a primary raw material for many ceramics such as earthenware, stoneware, and porcelain. However, Shenango manufactured Franciscan's Gourmet line of stoneware dinnerware and cookware. Glaze is also used on stoneware and porcelain. Exotic pottery types include Chinese stoneware and glazed ware from the Song Yuan periods. The streets are filled with artisan workshops and sidewalks stalls selling pottery and stoneware pieces. Occasionally versions are seen with a glazed china front and an unglazed stoneware back. These cultures did not develop the stoneware, porcelain or glazes found in the Old World.