Wondering about this…rock?

[DemonCatSpaceStar]

Hello, I've posted with Native American Artifacts on this site previously but never with fossils (i don't think?).

The first two are what I hope is a Mammoth root/tooth?Rock? I've found many like these but I have ether passed them up or when i do pick them up ,they've been interesting rocks. i hope they're more?

The next I assume is some sort of petrified wood?Rock?

Any Ideas?
Thanks,
Phil

 

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[Calgarychef]

Well if you look at pictures of modern elephant teeth they sure look similar.

 

[old digger]

Your item in the first two photo does not appear to be a fossil, of coarse that is just from what I am seeing. In magnifying the photo it appears to be too grainy. But your other item does appear to be a piece of petrified wood.