I was visiting my dad for 3 weeks and wanted to do something outside. He has a bad back so he isn't very active and is very limited. I was magnet fishing in the Detroit river in hope of finding murder weapons; guns, knives, pipe bombs, etc.
I've been doing a lot of research and to me, this object looks like a Achondrite meteorite. It's stoney, metallic, and crystalline. I'm getting it tested by the head professor at the UW geologist program .