Various pieces of bone or tusk??

[Chrysalyst]

This was found after a dredging operation. The pieces are solid rock at this point. Could it be tusks of something?

 

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[old digger]

Looks like bone with the porous centers. If it was tusk it would have growth rings like a tree.

 

[smokeythecat]

I agree with the bone observation.

 

[A2coins]

A bone it is

 

[Chrysalyst]

Interesting!