argillite

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ar·gil·lite

A0417600 (är′jə-līt′)n. A metamorphic rock, intermediate between shale and slate, that does not possess true slaty cleavage.

[Latin argilla, argil; see argil + -ite.]

argillite

(ˈɑːdʒɪˌlaɪt) n (Geological Science) any argillaceous rock, esp a hardened mudstone[C18: from Latin argilla clay (from Greek argillos) + -ite¹] argillitic adj

ar•gil•lite

(ˈɑr dʒəˌlaɪt)

n. any compact sedimentary rock composed mainly of clay materials; clay stone. [1785–95; < Latin argill(a) clay (< Greek árgillos, derivative of argós white) + -ite¹] ar`gil•lit′ic (-ˈlɪt ɪk) adj.

Thesaurus

Noun

argillite - a sedimentary rock differing from shale in being bound by silica and from slate in having no slate cleavagessedimentary rock - rock formed from consolidated clay sediments

argillite

[′är·jə‚līt] (petrology) A compact rock formed from siltstone, shale, or claystone but intermediate in degree of induration and structure between them and slate; argillite is more indurated than mudstone but lacks the fissility of shale.

argillite

A rock containing chiefly clay materials; derived from claystone, siltstone, or shale; used locally as building stone, although rarely produced commercially.

argillite

ar·gil·lite

argillite

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Words related to argillite

noun a sedimentary rock differing from shale in being bound by silica and from slate in having no slate cleavages

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