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Sand is composed primarily of finely divided rock and mineral particles. It’s typically defined by size, being finer than gravel and coarser than silt.
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Sediment: Material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice.
Silicon Dioxide: The chemical compound SiO2, also known as silica, which is most commonly found in nature as quartz and is a major component of sand.
Granular Material: A conglomeration of discrete solid particles that can range in size from microscopic powders to large rocks.