From my "maybe" pile...hammerstone?

[Aurora1959]

Cleaning out the Artifact Zone of my living room. This was found among the chips, flakes, and tools of a very productive sight. Is it a hammerstone?
Or just a beat up rock? How do you tell?

 

[smokeythecat]

Yes to a hammerstone!

 

[OntarioArch]

I would ask myself: Is there any natural process that could account for the circled area on this rock? I'm not sure...looks kinda like individual, distinct, peck-type marks to me....if Uni thinks it's a hammerstone, that's good enough for me, for sure.

 

[Relicgrubber]

Lol@if uni thinks.

 

[Quartzite Keith]

Yes, but not for flint knapping. For cracking nuts or crushing stuff up. Find a rock like that and spend a few minutes cracking nuts with it and it will come out looking just like that.

 

[uniface]

Uni thinks.

FWIW

 

[unclemac]

pretty classic one too