Why this rock is probably not a meteorite:

It's got a few gas bubbles (vesicles). Meteorites aren't full of gas bubbles.

Also, at the top left, it's green inside one of the big ones.

The finder also had the thing chemically analyzed. It was loaded with copper (1%) and other elements that sometimes follow copper (Zn, Pb). The green stuff is some copper compound. Meteorites do not contain such high levels of copper.
What is it?

A piece of industrial slag.


Prepared by:

Randy L. Korotev

Department of Earth and Planetary Sciences
Washington University in St. Louis

Please don't contact me about the meteorite you think you’ve found until you read this and this.