Why this rock is probably not a meteorite:

There's no fusion crust and the surface is too rough. When we sawed this rock in two, the water lubricating the saw turned bright rusty red. That never happens with a meteorite.
What is it?

This is a big hematite nodule or concretion - a piece of iron ore. It was found here in Missouri. Material like this was once mined in the Ozarks. The nodules weather out of the limestone rocks.


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.