clay stone

or clay·stone

noun Geology.

argillite.

Origin of clay stone

First recorded in 1770–80

Words nearby clay stone

clay eater, clay flour, clay mineral, clay pigeon, clay road, clay stone, clay, henry, clay-colored robin, clay-colored sparrow, claybank, clayborn

Example sentences from the Web for claystone

  • Why should the schist pendant of the Tappock chamber be all right, if the claystone pendant of Dunbuie be all wrong?

    The Clyde Mystery |Andrew Lang

  • But there was more; close by the stone I noticed (although I think you didn't) a mark in the claystone.

    Chronicles of Martin Hewitt |Arthur Morrison

  • We see them light their claystone pipes, and send forth clouds of blue vapour.

    The Scalp Hunters |Mayne Reid

British Dictionary definitions for claystone

claystone
/ (ˈkleɪˌstəʊn) /

noun

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

Scientific definitions for claystone

claystone
[ klā′stōn′ ]

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