Rock?

[Fullux]

Any idea what this is? Found it at my usual spot in the Drakes formation.

 

Found in Louisville, Kentucky.

[Rockwood]

Things like this are frustrating common in a lot of places. I usually call them just concretions. 

[Fullux]

2 hours ago, Rockwood said:

Things like this are frustrating common in a lot of places. I usually call them just concretions. 

Pretty interesting looking concretion if I do say so myself.

[Mark Kmiecik]

5 hours ago, Fullux said:

Pretty interesting looking concretion if I do say so myself.

 

Not really. If you look at all the strange shapes that Mazon Creek concretions come in you would say this is somewhat common. Concretions are probably the most varied of all geological forms.

[Tidgy's Dad]

1 hour ago, Mark Kmiecik said:

 

Not really. If you look at all the strange shapes that Mazon Creek concretions come in you would say this is somewhat common. Concretions are probably the most varied of all geological forms.

I agree that they can be almost infinitely varied.

And sometimes annoying! 

But they still can be interesting. 

[debivort]

6 hours ago, Fullux said:

Pretty interesting looking concretion if I do say so myself.

don't lose it in your Cheerios!