Do you have a rock or stone that's got you unsure what it really is?
The University of Michigan Museum of Natural History is hosting their own "ID Day" on Sunday, October 8. During this event, people can bring in objects and have special help from University of Michigan experts to identify them.
"ID Day" is not just limited to identifying just rocks and stones. Visitors are welcome to bring in arrowheads, shells, metals, (or just about anything) to help get identified.
The event takes place at the museum (1105 N University Ave, Ann Arbor, MI 48109) from 11 a.m. to 4 p.m. at and is free and open to the public.