clay stone

or claystone

noun

, Geology.

First recorded in 1770–80

Every ferruginous clay-stone is regarded as an iron ore, when it contains more than 20 per cent.

The fire was soon kindled, and the clay-stone calumet filled with “kini-kinik.”

The bulk of the island appears to be composed of a compound rock, formed of clay-stone and potstone intermixed.

There stood King Valdemar pale as clay,Stone dead at his feet the maiden lay.

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