Artifact or natural?

[mattw756]

 

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[King Canslaw]

View attachment 2028914

It cood be a Indian stone mabee for pouding or grinding a nut. Peoople say look for peckeing with a nother stone or anler. Maybee a litle peckeing marks?

 

[Tdog]

I think it's a naturally shaped stone. The authentic ones will exhibit use wear as well as pecking and grinding you speak of. Got to study a lot to recognize them and know the tool-making techniques and material. To get you started, take a look at these images of...

Mortar and Pestle

mortar and pestle native american - Google Search

Mano and Metate

native american mano and metate - Google Search

 

[old digger]

More photo's would help, but from what I am seeing I would suggest, natural.

 

[Treasure_Hunter]

Always better to post pictures of all sides and something for size reference or measurements.

 

[unclemac]

that is a very common shape in nature, those fracture angles are indicative of that kind of stone.