31. Together Reppert and Williams manufactured stoneware for dealers in at least four states. 32. Porcelain stoneware can be used instead of natural stone. 33. Semi-vitreous stoneware may be glazed like faience. 34. In the 19th century the manufacture of stoneware was important in the town. 35. The bulk of these recoveries were earthenware sherds, porcelain, and stoneware . 36. Mostly they are ( in Western terms ) stoneware . 37. Stoneware is sturdy and vitreous to semi-vitreous and porous when fired.38. The most underdeveloped mass ceramics area is in tableware, porcelain and stoneware . 39. Fragments of stoneware were recorded immediately upslope from the " workshop " area. 40. MOM stores and protects data for future generations using specially designed stoneware tiles.