Meteorites are rare space rocks that have survived the rough entrance and long fall through Earth's atmosphere. They are either comprised of iron with hint of nickel, stone and silicates or a mix of both types.
When it comes to hunting for and finding these extraterrestrial objects, its anybody's game. All it takes is some research into the locations of known sights of impact called strewing fields, or the determination to make a cold find on your own. Suggested tools include a rare earth magnet and a metal detector.
There are many trusted dealers and collectors out there in search of these Wee World Wonders, remember how important it is to reaseach and do business with legitimate sources.