Why this rock is probably not a meteorite:

It might be. It has some kind of shiny coating. The main suspicious aspect is that two of the sides are very flat. That's not impossible in a meteorite, but it's uncommon. If it is a meteorite, it must have broken apart in the atmosphere.
What is it?

Don't know. I encouraged the finder to have a petrographic thin section made.


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.