Why this rock is probably not a meteorite:

Because anything that looks like this is not a meteorite. Meteorites are smooth on the outside.
What is it?

We don't know. Could be solidified lava, that is, a basalt. It came from Sumatra.



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.