Unknown fossil

[ilovethebeatles]

Hello everyone! I have another unidentified geological object. I'm assuming it's a fossil but I'm not sure. I'm thinking it's a sea shell of some kind? Since I'm an amateur when it comes to fossils I might be wrong. I found this around my farm in northern Illinois, so it very well could be just a chopped up rock. If it is a fossil, is it rare? All input is appreciated! Thanks guys! 

[Tidgy's Dad]

It is a fossil.

Part of a brachiopod valve. 

Quite common but nice as it is a brachiopod, my favourites. 

[ilovethebeatles]

13 minutes ago, Tidgy's Dad said:

It is a fossil.

Part of a brachiopod valve. 

Quite common but nice as it is a brachiopod, my favourites. 

Thanks! I'm glad it's a fossil, as I was afraid it was just a piece of quarts! 

[Fossildude19]

Actually, there are 2 pieces of brachiopods showing.   

 

 

 

[ilovethebeatles]

2 hours ago, Fossildude19 said:

Actually, there are 2 pieces of brachiopods showing.   

 

 

 

Wow!! That's so cool!! Thanks!!