Why this rock is probably not a meteorite:

1) No fusion crust.

2) It's full of holes. Meteorites don't have holes like this.

3) There's a pink vein (or stain? running through it. Meteorites don't have veins like this.
What is it?

Probably some kind of volcanic rock, like a basalt.

The rock came from northern Illinois where someone picked it up after seeing a meteor fall 50 years ago. We hear this kind of story a lot, and so far none of the rocks have been meteorites. It's not easy to find the right rock. Also, a meteor stops "burning" miles above the ground, so it's very difficult to determine where it actually falls, if there is any material left to "land" at all. Most meteors "burn up" completely in the atmosphere.


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.