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arenite
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sandstone
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arenite

rock
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History

arenite, any sedimentary rock that consists of sand-sized particles (0.06–2 millimetres [0.0024–0.08 inch] in diameter), irrespective of composition. More formal nomenclature of such rocks is based on composition, particle size, and mode of origin—e.g., sandstone, quartzite, lithic arenite, and feldspathic arenite.

This article was most recently revised and updated by John P. Rafferty.