Why this rock is probably not a meteorite:

1) It's too spherical.  Meteorites are never this spherical.

A meteorite is a rock that was ejected from an asteroid or planet by the collision of another meteoroid or asteroid. That process makes angular, broken rocks, not spherical rocks. As the meteor enters the Earth's atmosphere, some of the jagged edges are smoothed and rounded by melting, but never to the extent of making a spherical rock. Among lunar meteorites, the most sherical is Dhofar 280.

2) There is no fusion crust.  There is some kind of a rind, but it doesn't look like a fusion crust. A fusion crust is shiny and usually dark.
  
What is it?

This is probably some kind of concretion. See cannonball concretions
  

www.catchafallingstar.com
www.catchafallingstar.com


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.

e-mailkorotev@wustl.edu