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Crushed and pulverized fired clay pieces (biscuit) that are mixed with fresh clay to make it less plastic. Grog also makes the clay thicker and reduces shrinkage on drying. Materials crushed to make grog include broken and burned ceramic pieces, fire brick and saggers.

Synonyms and Related Terms

grog (Ned.); chamota (Port.)

Resources and Citations

  • R. Fournier, Illustrated Dictionary of Practical Pottery, Chilton Book Co., Radnor, PA, 1996, p. 137.
  • R. Mayer, The Artist's Handbook of Materials and Techniques, Viking Press, New York, 1981
  • Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997

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