Ordinary Rock?

[agatequeen]

I found this rock close to a very large bolder with 4 mortar holes. Need someones expert knowledge. Thanks for your time.

 

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[jamey]

it may have been a nutting stone,with those dimples

 

[agatequeen]

I don't know much about nutting stones but the biggest dimple measures 3/4 inch deep and 3 1/2 inches wide. It is rough inside the dimple so what do you think?

 

[jamey]

it would be a hard one to prove,maybe you could get lucky and see some remnants of shells under a microscope.i have seen some natural rocks that just looked like a rock,come out of mound dug by an archy that had dimples in it,it was found to be a paint pot,they took advantage of natural rocks so if it was found with something that was easy too tell that they used it,it could be an artifact.the shell of a nut would not do much too the rock,if they missed a few times though that might show.

 

[agatequeen]

Thanks for the info. I will just hold onto it but it probably is just a ordinary rock. Thanks again.

 

[quito]

My best guess is it is a completely natural depression. See the other little divot in there too?

 

[IAMZIM]

I would tend to agree with quito, it looks like a silica based rock like sand stone, if it is, then water and wind can make depressions like that very easily. I'm no expert, but it seems like sand stone would not be a good material for use as a nutting stone.

 

[rock]

My best guess is it is a completely natural depression. See the other little divot in there too?

Natural, if the divots were used for grinding the small brown inclusions that are raised above the host stone would not be there they would be ground smooth from use and not raised. I agree with quito and I thought you should have a valid reason why.