Mars Meteorite Piece in Display Case - Genuine Rock from Mars! Genuine rock from mars in a plastic display case! From a genuine meteorite from Mars! Each case contains a small Martian Shergottite. These Meteorites are classified under the Meteoritical Bulletin Database with the official name NWA 7397. This is a meteorite fragment from the NWA 7397 meteorite, which had a total weight of 2.13 kilograms. There are a very limited amount of these available. Only 137 meteorites have been classified as Martian Shergottite as of 2016!