Why this rock is probably not a meteorite:

1) This rock is about 2 inches across. There is no kind of meteorite that has coarse crystals like this. No kind of meteorite has crystals that radiate outward like this.

2) The crystals are quartz, and meteorites don't contain quartz.
What is it?

This is a quartz concretion, a closed geode.


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.