claystone

British  

/ ˈkleɪˌstəʊn /

noun

1. a compact very fine-grained rock consisting of consolidated clay particles

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claystone Scientific  

/ klā′stōn′ /

1. A fine-grained, dark gray to pink sedimentary rock consisting primarily of compacted and hardened clay. Claystone is similar to shale but without laminations.

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Example Sentences

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

When these crystals have appeared, and when the basis has become compact, the rock in many places could not be distinguished from a true claystone porphyry without a trace of mechanical structure.

From Geological Observations on South America by Darwin, Charles