2013年10月21日星期一

3 Types of Russian Porcelain

There are three types of porcelain that Imperial Porcelain uses: soft, hard, and bone. Soft porcelain is for statues and figurines, hard for dishware, and bone for very thin but strong pieces. Strength depends on the concentration of various minerals in the clay.
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Hard porcelain can withstand heat better than any other kind. When it is fired at high temperatures, the clay and glaze become fused together. When a hard piece of porcelain is broken, it is impossible to tell where ceramic begins and glaze ends.
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Soft porcelain is fired at lower temperatures. Breaking a soft porcelain piece would reveal somewhat grainy earthenware covered by glossy glaze. While hard porcelain will be pure white, soft has a warm buttery color that many porcelain enthusiasts find preferable. Bone porcelain’s strength is between that of hard and soft. It is made (as one might guess) by adding animal bone ash to the clay. Some say that the creation of this type of porcelain is the result of a miscommunication. In China, the porcelain clay was often metaphorically referred to as the “bones,” and the finished product the “flesh.”

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