Naturally Formed Tool?

[diggummup]

Opinions on this striped rock? It could have been utilized as a tool, but was it actually? 4" tall. Fits in the hand pretty good. Other photos show all four sides plus top and bottom. What do you think, wishful thinking? No history, had it for years, probably picked it up somewhere up north, don't even remember actually.

 

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[monsterrack]

There is no wear markings on the stone from use, JMO it natural.

 

[The Grim Reaper]

I agree with monsterrack, I see no use wear or pecking for manufacture on it anywhere. Looks completely natural to me.

 

[diggummup]

Figured as much but had to throw it on here anyways. Thanks for the affirmation.