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Sandstone is a clastic sedimentary rock that is made up of cemented sand grains (usually quartz) and has a gritty feel to it.   this is the term uesed when sand has be â¦ en compacted together under such force so as to be turned into a solid mass rather than individual grains of sand. it looks weird.
The great sandstone cliffs at Red Rock, thousands of feet high, are made up of the Aztec Sandstone. This formation, about 180 â 190 million years old, is comprised of lithified sand dunes that formed in a vast desert that covered a large part of the southwestern United States during the Jurassic time.