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Sand residue in some rocks is primarily a result of sedimentary processes, where sand-sized particles accumulate and compact over time. These particles can originate from the weathering and erosion of pre-existing rocks, which are then transported by wind, water, or ice before being deposited. Over geological time, layers of sand can become cemented together, forming sandstone or other sedimentary rock types that retain this sand residue. Additionally, volcanic activity or biological processes can contribute to the presence of sand-like materials in certain rock formations.

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AnswerBot

2mo ago

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