Needing help identifying

[justinberry]

I got these along with a blade and a point (not pictured) from my cousin who got them from his mother (my aunt). She is from Tucson and Marana Arizona. She may have gotten them from her ex husband who is from Mexico. I'm almost certain of the axe but could use some help with the raised groove item.

 

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[justinberry]

Update

Got it identified. Desert Southwest "natural" artifact.

 

[joshuaream]

The second piece is likely some type of chipped adze or hoe. (Axe is a good enough term for it as well.)

The first piece is an odd one. There are a couple of pictures that I would be highly certain it's man made, and then some others where I think it's completely natural. Not sure what it is.

 

[Tdog]

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[kentucky Quinn]

How about a pic of the blade and point not pictured please