Why this rock is probably not a meteorite:

1) No fusion crust. The darker exterior is desert varnish.

2) Large shiny grains on the broken surface are quartz. Quartz doesn't occur in meteorites

What is it?

We think it might be a hydrothermally altered volcanic rock.


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.