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Is this Agatized Coral?
I found this today on a walk. In an area that was a shoreline of the Western Interior Seaway. It’s super smooth in all the areas except for the porous side. One side is completely smooth and perfectly flat.
I’ve found coral in this area before but not Agatized coral, could perhaps be an Agatized tooth? Any help is appreciated!
u/Enigmatic-BlackSwan — 2 days ago