Maybe part of a grinding stone?

[Older The Better]

Found this the other day while killing time, it was sticking out the side of the hole I have going where I find lots of flakes and the occasional tool. At first I thought it was nothing, then i kept it because the shape made me think of a broken grinding stone, when I washed it off I was surprised to find it was not native stone.



Im thinking Sioux quartzite grinding stone, but at the least it must have been a hunk of raw material they brought down from up north. I hesitate to say core because it looks more broken than worked. What do you guys think?

 

[uniface]

Couldn't be (part of) a glacial cobble ?

 

[Older The Better]

It probably is but no glaciers made it this far south so it’s been carried from farther north The closest and most likely place I know of would be Kansas City/ Lawrence area, this was found 2 hours south of there

 

[uniface]

Yep. Map says it only got as far as your northeastern corner.