Ok, got another long shot here. Is this a quartz core by any chance? It was found with a pretty good amount of debitage lying around. The top is very smooth, and flat enough to lay a credit card on, if that means anything. TIA
It doesn't look like quartz to me. Could be quartzite but Im not sure what type it is. If its a core I stand corrected but I see no signs of ancient man picking it up and using it.