Can any one tell me if this rock might be some kind of primitive tool?

Ed Harley

It's an Indian walnut cracker. Just place the nut on your forehead and whack it with the rock.

Rebecca

Sounds like you yourself might be a primitive tool.

RickyRoo88

It’s primitive enough to not even exist...

Anonymous

Wow! It is a rare inviso rock tool. Used by the inviso people of the inviso tribe.

yimi

Hard to tell from the non-existent photo you posted,

lili

All rocks are primitive tools.

KY-Clay

Hard to tell from the non-existent photo you posted,

18 gibbs 20

All rocks are primitive tools.

J.B.Schneider

It looks sort of like a meteorite thrown through the heavens by the Flying Spaghetti Monster.

Anonymous

You have been watching too many Discovery documentaries.

Mark IX

Are you holding your penis? You're a tool, your penis is not.