What is martian meteorite?

Martian Meteorite

A martian meteorite is a rock that formed on the planet Mars, was ejected from Mars by the impact of an asteroid or comet, and landed on the Earth. Of over 53,000 meteorites that have been found on Earth, 99 were identified as martian (as of 2011-07-30). These meteorites are thought to be from Mars because they have elemental and isotopic compositions that are similar to rocks and atmosphere gases analyzed by spacecraft on Mars.

Read more about Martian Meteorite.

Some articles on martian meteorite:

Martian Meteorite - Possible Evidence of Life
... Several Martian meteorites have been found to contain what some think is evidence for fossilized Martian life forms ... The most significant of these is a meteorite found in the Allan Hills of Antarctica (ALH 84001) ... Other Antarctic meteorites do not contain PAHs ...
Achondrite - Classification - Martian Meteorite
... Martian meteorites are meteorites that originated from Mars ... in four groups Shergottites Nakhlites Chassignites OPX martian meteorites (ALH 84001) ...