Classification
It is the prototypical example of the Nakhlite type meteorite of the SNC Group of Mars meteorites.
A number of meteorites thought to have originated from Mars have been catalogued from around the world, including the Nakhlites. These are considered to have been ejected by the impact of another large body colliding with the Martian surface. They then travelled through the solar system for an unknown period of time before penetrating the Earth's atmosphere.
Read more about this topic: Nakhla Meteorite