claystone

British

/ 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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

claystone Scientific

/ 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.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The properties of clay and claystone crucially depend on how the tiny sediment particles are orientated.

From Science Daily • Dec. 2, 2024

Employing cutting-edge techniques like Rock Eval Pyrolysis, they deciphered the organic richness of different types of rock, including shale, claystone, sandstone, and siltstone.

From Science Daily • May 7, 2024

Rocks exclusively composed of silt or clay sediment, are called siltstone or claystone, respectively.

From Textbooks • Jan. 1, 2017

Fine-grained rocks include mudstone, shale, siltstone, and claystone.

From Textbooks • Jan. 1, 2017

Eleventhly: sedimentary and tufaceous beds as before, passing into sandstone, including some conglomerate: the pebbles in the latter are of claystone porphyry, well rounded, and some as large as cricket-balls.

From Geological Observations on South America by Darwin, Charles

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023