Why this rock is probably not a meteorite:

It consists of shiny cubes. Meteorites are never square.
What is it?

Galena crystals with marcasite. They were found on the street in Exeter, California.


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.