Why this rock is probably not a meteorite:

No kind of meteorite is this spherical (see no. 001), this white, and this knobby.
What is it?

I have no idea. It appears to be man made.

June 2004: Paul V. Heinrich of the Louisiana Geological Survey offers this: "It looks a lot like Precambrian iron oxide nodules, pseudomorphed after pyrite, that I am studying, which came from the pyrophyllite (wonderstone) mines nears Ottosdal, South Africa." His second hypothesis is that it "is a large Moqui Marble type of iron oxide nodule developed in cross-bedded sandstone. In this case, the ribbing reflects variations in the distance from the central axis of the nodule that cementation has occurred because of differences in the permeability of individual cross-beds." Thanks Paul.


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.