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World Sands Collection
Shitsukari, Higashidohri, Shimokita, Aomori, Japan
This beach sand is coarse/very coarse (0.5 - 1.5mm in diameter), and it is well sorted.   It consists of quartz, feldspar, brown siliceous rocks, sandstone and so on.  The grains are rounded well.
one scale for 1mm
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