flint clay


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flint clay:

see fire clayfire clay,
clay that has a high degree of resistance to heat. By the best standards it should have a fusion point higher than 1,600°C;. The term "fire clay" is commonly held to exclude kaolin and other refractory potter's clays.
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flint clay

[′flint ‚klā]
(geology)
A hard, smooth, flintlike fireclay; when it is ground, it develops no plasticity, and it breaks with conchoidal fracture.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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