argillite

noun
ar·​gil·​lite | \ ˈär-jə-ˌlīt How to pronounce argillite (audio) \

Definition of argillite

: a compact argillaceous rock cemented by silica and having no slaty cleavage

First Known Use of argillite

1794, in the meaning defined above

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The first known use of argillite was in 1794

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Cite this Entry

“Argillite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/argillite. Accessed 27 Oct. 2020.

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Britannica.com: Encyclopedia article about argillite

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