Why this rock is probably not a meteorite:

1) No fusion crust.

2) The exterior is not smooth.

3) Meteorites are not this vesicular.
What is it?

It looks like a volcanic rock, although it might be some kind of slag because the density is high for a vesicular basalt. It was found in Minnesota, and there is basalt, as well as iron ore, in northern Minnesota.

The bottom photo is of a sawn face.


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.