"Rock" Identification

Asked November 7, 2017, 12:33 PM EST

We had someone stop into the office wanting help in identifying this "rock" that he found on the side of the road in our area. I have attached 2 photos to help with identification. Any help you could give would be great!

Louisa County Iowa

1 Response

I have sent this question to the Geology department at ISU. When the response comes in, I'll send that, too.