Webnoun. ˈsand. 1. a. : a loose granular material that results from the disintegration of rocks, consists of particles smaller than gravel but coarser than silt, and is used in mortar, glass, abrasives, and foundry molds. b. : soil containing 85 percent or more of sand and a maximum of 10 percent of clay. broadly : sandy soil. 9d3APU1uEf7D WebSand forms when rocks break down from weathering and eroding over thousands and even millions of years. Rocks take time to dpose, especially quartz (silica) and feldspar. Often starting thousands of miles from the ocean, rocks slowly travel down rivers and streams, constantly breaking down along the way. hkxHfbhKXxDC
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