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Is 0.0313 inches as long as a Grain of Sand?

It's about two-thirds as long as a Grain of Sand
The length of a Grain of Sand is about 0.0492 inches.
(medium grain)
Composed mainly of quartz, mica, feldspar, or magnetite, a grain of sand measures an average of 0.0492 inches. In 2007, a team of seven in Myrtle Beach created the world's tallest sandcastle, which measured 594 inches in height.
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