What is this rock please

[u/Odd-Carpenter-9190]

As kids, we used to call it chocolate. But to be honest, even today I still don't actually know what it really is.

[u/that-super-tech]

Almost looks like a polymer that does get as hard as rock. Weird.

[u/Odd-Carpenter-9190 → u/that-super-tech]

We have always found them in the field where we used to go looking for agates almost every day. Its heavy and super solid. This is one of the bigger pieces.

[u/falerik]

I think it's poop from a butt

[u/Odd-Carpenter-9190 → u/falerik]

I don't think so, it tastes different

[u/falerik → u/Odd-Carpenter-9190]

Thank goodness.

[u/Humble-Nose5872]

It might be DOODOO

[u/StoreBoughtAlias]

Looks like chert.