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bone or wood?

5mon 15d ago by lemmy.world/u/Jerb322 in whatisthisthing

It makes a "clink" when tapping it on glass or metal. Or with a finger nail. Found on a river bed in Wisconsin.

I don't see tree rings, and the shape looks correct for a split bone missing the marrow.

Looks like bone to me

I'd guess it's petrified bone.

Looks like a dog chew-- groove down the centre doesn't look natural, it looks molded/pressed. Something similar to this, but long weathered: https://pettoba.ca/products/rice-bone-all-natural-daily-dental-chew-for-dogs-whimzees%C2%AE?srsltid=AfmBOoohVgThiUMb_dpn54T6TA6Cn525z4D1otI4tFKRKIOB_OR4NVe1