Johnny Ringo, put your guns away and grab a........
file and file a "window" into an edge of it , this will expose the inside for you to view, see if it seems to have specks of shiny nickle inside mixed with other minerals. Then after you have removed the exterior with the filing acton from a small area get a piece of unglazed tile or the underside of your toilet tank cover and rub the exposed area back and forth several times to do a streak test, you should NOT see color, if you see brown, black, red etc. it is not a meteorite, just a lowly Earth rock or piece of iron slag deteriorating.
LIKE THESE
Now between the "look", magnet test and the info you have here......
You just learned how to identify a common meteorite in laymans terms, NOT ALL Meteorites, there are different forms which are much less common.
Also "Generally" speaking you should see some BLACK on the exterior, that is the "fusion crust" that forms as its entering the atmosphere and it burns from the heat generated in doing so. Depending on the conditions of which it has been exposed to laying on or in the earths ground and the amount of time it has been exposed to the conditions.
The NEXT and FINAL TEST is to send all or a piece in to the U of Arizona to be tested for the ULTIMATE TEST.