Description
Fabric: Soft and chalky, usually buff to very pale yellow, but can also be pale brown. Sherds are easily mistaken for tin-glaze missing its glaze, and the costrels may have come from kilns primarily producing tin-glazed products. Read More…
Popularity: 1%
Description
Fabric: Thin and light, varying in quality from fine to coarse. There are many impurities in the clay which produce pitting and small imperfections.
Glaze: There is a bluish tinge to the glaze which has a tendency to flake off of rims and give it a moth-eaten appearance. Read More…
Popularity: 2%
In order to contain liquids in containers in the ground, we must cover it a glassy coating, called “glaze”. It is a kind of glass layer, composed of silica and lead oxide: silicon substance not only to 1700 °, temperature too high for land that supports it, by adding lead oxide it lowers the melting temperature of the glaze between 800 ° and 1 000 °.
It can affect the color of the land, which turn red when they contain iron oxide, or white when they contain limestone, silica, kaolin, in this case, the two superimposed layers of earth color different, and it widens again to the lower. Read More…
Popularity: 1%
