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World Sands Collection
Neyinzaya River (No.2), Kontha, Chin State, Myanmar
This sand was picked up at the place about six kilometers downstream from the place of Yazagyo Dam project.  It is muddy sand/gravel (5mm or less in diameter).  It consists of sandstone, shale, siliceous rocks, quartz and so on.  Some grains of dark brown siliceous rocks stand out among them.
one scale for 1mm
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