[meteorite-list] Just Another Question

[Pete Shugar]

Hello list,
I've given this more than just a passing thought as I think this is a very 
intreguing question.
If an impactor smacks into the moon with enough energy, objects will be 
dislodged.
If they make it to earth intact, we have a luner meteorite.
Same goes for Mars and Astroid 4Vesta.
So,.....suppose we have a very high speed impactor that hits earth, and 
dislodges material that is now in orbit. If the material crosses Earth's 
orbit again, and survives to the surface of earth, would it be modified in 
it's appearance to the extent that it would be seen as a meteorite and not 
just another rock?
Has anything ever been found that might be in this class of material?
Would there be anything that would set it apart as a different 
rock/meteorite?

Pete