Why this rock is probably not a meteorite:

There is no fusion crust. No part of the surface is rounded or smooth. The rock is too porous; meteorites are not porous. The clasts (light-colored things) are limestone and quartz; meteorites don't contain limestone (calcite) and quartz.
What is it?

We don't know.


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.