Definition of argillite in English:

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argillite

Pronunciation: /ˈärjəˌlīt/

noun

Geology
A sedimentary rock that does not split easily, formed from consolidated clay.
Example sentences
  • The Nelson mineral belt was rich in argillite, a dark stone which made fine tools.
  • Bear images were carved into blocks of argillite, claystone, and wood or sculpted from clay, with the creative three-dimensional transformations displaying a remarkably naturalistic style.
  • Low water levels reveal carved layers of green and red argillite.

Origin

Late 18th century: from Latin argilla 'clay' + -ite1.

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