found this on the ohio river posted once was too large for posting so here it is

[idahowayne]

whats this never seen it before, found in the summer of 2010 on ohio river!

 

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[catherine1]

Petrified jigsaw puzzle piece? I'm from ohio and I hope you found that south of me!! Very nice and unique Artifact!! Great find!!!!

 

[Terrafisher]

Looks like an arrow head? Lots of indians in that area.

 

[uniface]

The catch-all category for pieces like yours is "eccentric."

 

[PrimitiveOne]

what material is it-is it brittle??

 

[ohioaxeman]

uniface said it "eccentric"

 

[idahowayne]

what material is it-is it brittle??

yes very brittle and thin

 

[iowa trout]

Intresting I like it guessing ornamental ,not a good penatrator- is that a word.

 

[PrimitiveOne]

It looks like someone tried to make a head out of some substandard material and when it didn't work the made an eccentric out of it-cool find