Boulder-sized clasts are discovered in some stratified rocks, such as crude empire and also rock clay. In geology, a stone is a rock piece with size more than 256 millimetres (10.1 in) in size. While a stone may be tiny adequate to move or roll by hand, others are exceptionally massive. Alike use, a boulder is as well big for an individual to relocate. Smaller sized rocks are generally just called rocks (American English) or stones (In British English a rock is bigger than a rock).
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