Kaolin is a native clay, the result of decayed feldspar. It is found in Europe at Aue in Saxony, near St.-Yrieix-la-Perche in France, in Cornwall in England, and in Delaware in America.
Pe-tun-tse is a siliceous stone found in China, and in Cornwall, England, is known as a granite. This last melts at a lower heat, and a mixture of kaolin is essential to give strength and hardness to the work.
Oriental china (and all true porcelain) has the quality of hardness, and, when held up to the light, of translucency.
European porcelains are known as hard and soft, the pâte dure and pâte tendre of the French. The Dresden china is hard.
Fig. 126.—Dresden.