Why this rock is probably not a meteorite:

1) No fusion crust.

2) The exterior is not smooth.  
What is it?

Can't tell from photo. 

The finder said, "I found this rock at a site that I thought at first may have been a lightning strike, it was impacted into the earth with only about a 1/3 of it showing and the area around it was charred and still smoldering."  

A meteor in space is very cold because space is cold. As it passes through the atmosphere, the outside gets exceedingly hot - hot enough to melt the outside and form a glassy fusion crust. However, a meteor passes through the atmosphere so fast that the inside doesn't get hot. A meteorite this size would be cold if found right after it fell. Small meteorites like this don't usually start fires. Fires have been associated with and perhaps caused by meteors, but the mechanism is not known.  

If this rock is the result of a lightning strike, then the geologic term for the object is fulgurite - a rock-like object formed by the melting of soil or sand by a lightning strike (see no. 059).  Fulgurites are often tube-like and hollow, not spheroidal like this rock, however.


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.