Why this rock is probably not a meteorite:

This thing was found at Quincy Quarries, Massachusetts. It's not magnetic, and looks glassy. Again, the surface is too rough for a meteorite. Also, an old industrial site is a good place to find slag and other weird-looking man-made stuff but not such a good place to find meteorites.
What is it?

Possibly some kind of slag or other weird-looking man-made stuff.


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.