What's a nutting stone?
I agree natural stone...Sorry, I think it was made by mother nature. Check inside the "dimples" for use marks but I really think it is natural.
Dark Antiquity said:Check out omars or Omarolluk. Very easy to confuse with true Nutting or Cupstones.
Yup. Lots more in areas with constant, hard, single-direction waterflow- where a smaller rock can 'catch' in a boulder 'pocket' of sorts, start spinning around and around in an eddie until it eventually bores a hole- which can be quite deep in some cases. It will show horizontal, screwlike lines rather than impact/pounding marks. Paint cups often show residue of pigment. Nut stones (if there really is a segregated item which can be called such a thing) would be shallow enough to crack the shell of a nut w/o crushing the meat inside. There are also, I think, examples of deep mortars + pestles, but I think those are often (the mortar part) 'created' in non-mobile/permanent rock formations- out west. Just my 2 cents. HH!I had no idea that that was a common work of nature in certain parts. I'm on the VA. Line, and they aren't the rarest find, but far from common. I'm glad to know that they can be natural and found in large numbers depending on location.
Personally, I have never seen nature do that, but, their is a lot that I haven't seen.