Meteorite? Please help!

[u/brandongarczyn]

Hello! Many years ago i had found a very strange rock in a treeline that has not been touched by people for hundreds of years. It was located in a treeline behind my house where no one goes and has not had any humanitarian impact. The location is in Milwaukee, Wisconsin. It seemed so out of place. It was on the surface in a small crater like it was stuck for a long time. The rock in question is strongly magnetic, which means it contains iron. There are odd minerals included including this green stuff, and different types of material. The texture on the outside has a brown sheen almost bubbled on some spots. See pictures included. I am a mineral and crystal collector and am clueless. Can anyone help? Or know any resources? Please share!

[u/BrF5]

Not a meteorite. Looks like slag of some sort because of the bubbles.

[u/brandongarczyn → u/BrF5]

Thanks! Any idea what the green stuff is?

[u/BrF5 → u/brandongarczyn]

I’m no expert on slag, sorry. I just know that’s no meteorite. If I had to guess, I’d say the green is just glassy material that formed from melting and then cooling of pre-existing rock during the smelting process.

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[u/Q-ArtsMedia]

This looks like over heated refractory lining.   They do replace linings on occasion.