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ball clay

noun, Ceramics
a fine dark kaolinic clay that turns white or nearly white when fired, used in the manufacture of a wide variety of ceramic wares in combination with other clays for its exceptional bonding properties and plasticity.
Origin of ball clay
1805-15 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for ball clay
  • ball clay was later found to be a contaminant in catfish feed as well.
  • Resources of these types of clay are extremely large except for lesser resources of high-grade ball clay and sodium-bentonite.

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