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How big can gravel get?

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11y ago

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Well, one system says if a grain of sand is bigger than 2mm, it's a pebble, and a pebble bigger than 100 mm is a cobble, and a cobble bigger than 256 mm is a boulder, so you could use "pebble" for "gravel" I reckon.

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11y ago
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Q: How big can gravel get?
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