Why this rock is probably not a meteorite:

There's no fusion crust and the shape is not rounded and aerodynamic. Notice the chonchoidal chip to the right and below the center. Meteorites don't chip like this.
What is it?

Probably chert.


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.