Native Pottery and Need Ax Head ruling

[bergie]

Found these along river bed in Southern Arizona - curious if anyone knows anything about the red marks on the one piece. The ones with black lines are thinner than the usual pottery I find. Also, this could either be an ax head or just look like one. Any ideas appreciated on any of the items. Thank you.

 

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[A2coins]

You might have more replies in whats it or the native American Artifacts forum

 

[vpnavy]

 

[ToddsPoint]

I say natural rock for two reasons. The material looks porous and would not be tough enough for an axe. Second, those natural cracks where the bit would be would cause it to fail quickly. Gary

 

[SCdigger]

Not an ax head. Natural.