marlstone

[ mahrl-stohn ]
/ ˈmɑrlˌstoʊn /

noun

an indurated marl.
Also called marl·ite [mahr-lahyt] /ˈmɑr laɪt/.

Origin of marlstone

First recorded in 1830–40; marl1 + stone

British Dictionary definitions for marlite

marlite

marlstone (ˈmɑːlˌstəʊn)

/ (ˈmɑːlaɪt) /

noun

a type of marl that contains clay and calcium carbonate and is resistant to the decomposing action of air