Why this rock is probably not a meteorite:

Again, this thing is vesicular. Meteorites are never this vesicular. 
What is it?

The vesicles are of different sizes. That leads me to believe it wasn't made by a natural process and is probably a piece of 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.