✅ SOLVED Square Stone Tool

[oldbattleaxe]

This thing intrigues me. It must be for a pounding tool. I have never seen a square stone.

 

[sandchip]

It is cool and may've been used for something, but I believe it was naturally formed. I would've picked it up, too.

 

[oldbattleaxe]

It has two spots that are grooved that would fit a thumb and a forfinger. and fits nicely in the palm. The end that is cleaner and the surface is rough could be a hammer surface. Like you, I would pick it up because of the novelty of it, and it is likely that some human had used it for that purpose also.

 

[arrow86]

Many very similar stones found on the river shores near me I would think it’s just a natural stone not an artifact

 

[unclemac]

don't be fooled by thumb and finger grooves....if you pick up any water tumbled stone you will find such marks.