clay stone
or claystone
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noun Geology.
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Origin of clay stone
First recorded in 1770–80
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use clay stone in a sentence
British Dictionary definitions for clay stone
claystone
/ (ˈkleɪˌstəʊn) /
noun
a compact very fine-grained rock consisting of consolidated clay particles
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Scientific definitions for clay stone
claystone
[ klā′stōn′ ]
A fine-grained, dark gray to pink sedimentary rock consisting primarily of compacted and hardened clay. Claystone is similar to shale but without laminations.
The American Heritage® Science Dictionary
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