Dating aluminia faience

31 Mar

is a ceramic material made by heating materials, generally including kaolin, in a kiln to temperatures between 1,200 and 1,400 °C (2,200 and 2,600 °F).

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Clays used for porcelain are generally of lower plasticity and are shorter than many other pottery clays.Porcelain is fired at a higher temperature than earthenware so that the body can vitrify and become non-porous.Porcelain originated in China, and it took a long time to reach the modern material.The clays used are often described as being long or short, depending on their plasticity.Long clays are cohesive (sticky) and have high plasticity; short clays are less cohesive and have lower plasticity.