I apologize. I didn't mean to hit and run. Was just busy. For more info on the black stone, click below.
http://en.wikipedia.org/wiki/Black_Stone
"The Black Stone's origin
Just as there are various viewpoints regarding the religious significance of the Stone, there are also various opinions as to its history and nature."
snip
"Secular historians point to the history of meteorite worship, in pre-Islamic Arabia, and say it is likely that the Stone is a meteorite or possibly impact glass, from the meteorite impact crater at Wabar, about 1100 km from Mecca.[5]. There is no way to test this hypothesis without removing and examining the Stone, which would not be permitted by its guardians."
Some believe the Angel Gabriel was a meteorite.