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a primitive stone artifact (usually made of sandstone) used as an abrader
a primitive stone artifact (usually made of sandstone) used as an abrader
a primitive stone artifact (usually made of sandstone) used as an abrader
a sedimentary rock consisting of sand consolidated with some cement (clay or quartz etc.)
Small loose grains of worn or disintegrated rock, The loose, granular, gritty particles in an hourglass, Sandstone_ so used in the Pennsylvania petroleum region, where the various beds of petroliferous sandstone are called oil-sands, and designated as first, second, third, etc., in the order in which they are struck in the borings. Similarly, the gas-bearing sandstones are called gas-sands, transitive verb_ To bury (oysters) beneath drifting sand or mud, To sprinkle or cover with sand, To polish or scrape with sand or sandpaper