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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Petuntse. The gallicized form of the Chinese pai-tun-tzu, first employed by Jesuit missionaries in the 18th century to describe the rock which forms an essential part of true porcelain manufacture. It is a silicate of potassium and aluminium, normally referred to as a feldspathic rock. It was first used, about the 3rd century BC, in China for glazing protoporcelain and later, about the 9th century AD, was mixed with kaolin (white china clay) to form the body of the first translucent porcelain. Petuntse is a fusible rock which, fired at a sufficiently high temperature, becomes a natural glass, like obsidian. It gives porcelain both its hardness and translucency.  4, record 1, English, - petuntse

Record number: 1, Textual support number: 1 OBS

Sometimes termed "Cornish stone" or "china stone" in England.  5, record 1, English, - petuntse

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Roche feldspathique et micacée, utilisée dans la fabrication de la porcelaine de Chine.  1, record 1, French, - p%C3%A9tuns%C3%A9

Record 1,  Textual support,  Spanish