Why this rock is probably not a meteorite:

This is a great one! A fisherman from Sweden sent this photo saying that he had pulled the rock up in his net from the ocean.

A stony meteorite would never have a protrusion like this. The protrusion would have been the first thing to break off or ablate away during atmosphere entry.
What is it?

A pillow basalt - a rock formed when lava erupts under water.


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.