. "Clastic sedimentary rock in which less than 30 percent of particles are greater than 2 mm in diameter (gravel) and the sand to mud ratio is at least 1."@en . "sandstone"@en . . . "Clastic sedimentary rock in which less than 30 percent of particles are greater than 2 mm in diameter (gravel) and the sand to mud ratio is at least 1."@en . . "http://inspire.ec.europa.eu/codelist/LithologyValue/sandstone"^^ . . . . . . . "sandstone"@en . . . . "2015-08-18 18:05 PM CEST"^^ . . . .