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porcelain consists of a spray dried body of selected clays, kaolinitic minerals, quartz and feldspar, shaped by dry pressing to form a ceramic material that is then fired at temperatures up to 1250 degrees centigrade. A key element of porcelain is its extremely low level of water absorption which is below 0.5%. As a result of new innovative processes new porcelain bears a striking resemblence to natural stones such as marble, granite and poryphyry. |