From what I could find a rock becomes a boulder when it exceeds 10.1 " in diameter. So going by that I'm sure we all have moved plenty of boulders by hand.We have been using our buckets, forks and backhoes for digging/moving these things. But I don't think I have seen a definition anywhere. Most likely it's a size in relation to the machine size?
Funny you should ask that. I should have just posted all the info I found. Anyway,a pebble becomes a rock when it exceeds approx. 2.5".Now that we got that question settled, at what size does a pebble become a rock? Or is there anything in between a pebble and a rock?
Your and my definitions are the same. :good2:If I can't pick it up and move it by hand, it is a boulder.
If it is bigger than a marble, it is no longer a pebble, but a rock.
I don't care what anyone else's definitions are, those are the facts as *I* state them. :good2: :laugh: