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World Sands Collection
Wēihăi-sì, Shāndōng-shěn, China
Weihai is the easternmost city in Shantong Province.  This brown sand/gravel is poorly sorted (less than 5.0mm in diameter but few fine grains).  It consists of quartz and granite with small amount of siliceous rocks and shale.  The grains are well-rounded.
one scale for 1mm
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