A type of sedimentary rock formed from accumulated particles of other rocks, typically created through weathering and deposition.
From Latin 'cumulus' (heap, accumulation) + '-ite' (mineral or rock suffix). Developed in 19th-century geology to name rocks literally built from heaps of smaller particles.
Cumulites are rocks made of other rocks—they're geological recycling centers where old stone gets broken down and reformed into something new, sometimes taking millions of years.
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