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argilliteenUK
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 adjar•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 | 1. | 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 |
argilliteenUK
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. argilliteA rock containing chiefly clay materials; derived from claystone, siltstone, or shale; used locally as building stone, although rarely produced commercially.argilliteenUK
Words related to argillitenoun a sedimentary rock differing from shale in being bound by silica and from slate in having no slate cleavagesRelated Words |