A Martian meteorite is a rock that formed on Mars, was ejected from the planet by an impact event, and traversed interplanetary space before landing on Earth as a meteorite. As of September 2020 [update] , 277 meteorites had been classified as Martian, less than half a percent of the 72,000 meteorites that have been classified.
Of the over 53,000 meteorites that have been found on Earth just 99 had been identified as Martian as of 30 July 2011. On 17 October 2013, NASA reported, based on analysis of argon in the Martian atmosphere by the Mars Curiosity rover , that certain meteorites found on Earth thought to be from Mars, were actually from Mars. 
Feb 22, 2013 · Olivine-Orthopyroxene-Phyric shergottite. 0.082 g fragment. This interesting meteorite has olivine megacrysts surrounded by low-Ca pyroxene and maskelynite. TKW is 315 grams. Date: 12 June 2011, 19:45:49: Source: Flickr: NWA 1195 Martian: Author: Jon Taylor: Permission (Reusing this file)
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Allan Hills 84001 ( ALH84001) is a fragment of a Martian meteorite that was found in the Allan Hills in Antarctica on December 27, 1984, by a team of American meteorite hunters from the ANSMET project. Like other members of the shergottite – nakhlite – chassignite (SNC) group of meteorites, ALH84001 is thought to have originated on Mars.
Yamato 000593 (or Y000593) is the second largest meteorite from Mars found on Earth. Studies suggest the Martian meteorite was formed about 1.3 billion years ago from a lava flow on Mars. An impact occurred on Mars about 11 million years ago and ejected the meteorite from the Martian surface into space.