IMCA is especially committed to 'authenticity' due to the technical aspects of meteorite identification. Since petrographic and mineralogical analysis is not easily available to all, meteoritical claims may not be verified by a buyer until much time has passed following the transaction, if at all. Unscrupulous persons have tried to capitalize on this weakness with forgeries, fakes, and switched meteorites. In order to ensure 'authenticity' IMCA members are encouraged to keep accurate records and 'monitor' each other's auctions and sales.

The following are some innocent and not so innocent meteorite scams.