Wedgwood marks dating wedgwood pottery and porcelain

Tin-glazed earthenware is usually called majolica, faience, or Kamakura period).The first production of stoneware in Europe was in 16th-century Germany.

When feldspar or soapstone (steatite) is added to the clay and exposed to a temperature of 2,000 to 2,650 °F (1,100 to 1,450 °C), the product becomes translucent and is known as porcelain.

In this section, is used to denote all pottery substances that are not vitrified and are therefore slightly porous and coarser than vitrified materials.

The date and place of the first attempt to make soft porcelain are debatable, but some Middle Eastern pottery of the 12th century was made from glaze material mixed with clay and is occasionally translucent (France.

It is not known whether they succeeded in making it or not, but, certainly by the end of the 17th century, porcelain was being made in quantity, this time by a factory at Saint-Cloud, near Paris.

Pottery, one of the oldest and most widespread of the decorative arts, consisting of objects made of clay and hardened with heat.

The objects made are commonly useful ones, such as vessels for holding liquids or plates or bowls from which food can be served.Therefore, the application of the terms is often a matter of personal preference and should be regarded as descriptive, not definitive.slip (a mixture of clay and water in a creamlike consistency, used for adhesive and casting as well as for decoration), with a clear glaze, or with an opaque tin glaze.The nature of glass, however, made it impossible to shape it by any of the means used by the potter, and a mixture of clay and ground glass was eventually tried.Porcelain made in this way resembles that of the Chinese only superficially and is always termed soft, or artificial, porcelain.European potters made numerous attempts to imitate them, and, since at that time there was no exact body of chemical and physical knowledge whereby the porcelain could be analyzed and then synthesized, experiments proceeded strictly by analogy.

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