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A fine-grain stone produced from the decomposition of feldspathic granite found in China, England and Wales. Growanstone, or petuntse, contains quartz, mica and fluorite and is considered an important addition to the kaolin for the production of porcelain. It is also used in glazes.

Synonyms and Related Terms

petuntse; China stone; Cornish stone; growan stone

Resources and Citations

  • George Savage, Art and Antique Restorer's Handbook, Rockliff Publishing Corp, London, 1954
  • Robert Fournier, Illustrated Dictionary of Practical Pottery, Chilton Book Company, Radnor, PA, 1992
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997