Grinding Stone?

[ADD Digger]

Hey,
Could this possibly be a grinding stone. ( found it close to where I found the hammer Stone )
The top is smooth and the bottom is fairly flat and has some pitting in it.
I would appreciate any thoughts or opinions,
Jim in south central Texas

[Lindenmeier-Man]

These are hardstone manos ..... JJ

[ADD Digger]

Yes, makes sense.
I can definitely see the wear on them.
I’m learning,
Thanks

[chase]

Mano's do show use wear.

[Lindenmeier-Man]

Thanks for the examples !

[ADD Digger]

Thanks chase!!!