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World Sands Collection
Nobi Beach (No.2), Nobi, Yokosuka-city, Kanagawa, Japan
This is medium to coarse-sized (2mm or less in diameter).  It consists of pyroxene, quartz, sandstone, shale, seashells and so on.  The grains are moderately sorted.  Most of the large grains are seashells.
one scale for 1mm
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