Why this rock is probably not a meteorite:

...because if it looks like a vegetable, it's not a meteorite.
What is it?

Hard to say, but I bet it consists mainly of quartz.

Note added later: One informed viewer called this a fossil coral. We've received samples of coral in the past that people have mistaken for meteorites. Another person said that it was a quartz geode. I suspcet that's correct.


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.