Potshard Also shard or sherd. A fragment of pottery. Polychrome A painted or glazed surface of three or more colors. Sgraffito A method of decorating pottery after firing wherein the surface is scratched to form intricate patterns. A fine, liquid form of clay applied to the surface of a vessel prior to firing.
Slip fills in pores and gives a uniform color.
Temper Sand, crushed rock, or ground-up potshards added to clay to reduce shrinkage and cracking during drying and firing. Compiled by Pamela Michaelis publisher of the Wingspread publications. Signed Maria and Santana.