Editing Martian meteorite (section)

===Ungrouped meteorites===
[[File:ALH84001.jpg|thumb|right|200px|[[Allan Hills 84001]] (ALH 84001)]]
Among these, the famous specimen [[Allan Hills 84001]] has a different rock type from other Martian meteorites: it is an [[pyroxenite|orthopyroxenite]] (an igneous rock dominantly composed of [[orthopyroxene]]). For this reason it is classified within its own group, the "OPX Martian meteorites". This meteorite received much attention after an electron microscope revealed structures that were considered to be the [[fossil]]ized remains of [[bacteria]]-like [[life]]forms. {{As of|2005}}, scientific consensus was that the [[Microfossil|microfossils]] were not indicative of Martian life, but of contamination by earthly [[biofilm]]s. ALH 84001 is as old as the basaltic and intermediate shergottite groups{{snd}} i.e., 4.1 billion years old.{{Citation needed|reason=No supporting information referenced|date=April 2017}}

In March 2004 it was suggested that the unique [[Kaidun meteorite]], which landed in [[Yemen]] on December 3, 1980,<ref>[https://www.lpi.usra.edu/meteor/metbull.php?code=12228 Meteoritical Bulletin Database]</ref> may have originated on the Martian moon of [[Phobos (moon)|Phobos]].<ref>{{cite journal|author=Zolensky, M. and Ivanov A.|title=The Kaidun Microbreccia Meteorite: A Harvest from the Inner and Outer Asteroid Belt|journal= Geochemistry|volume=63|issue=3|pages=185–246|date= 2003|doi=10.1078/0009-2819-00038|bibcode=2003ChEG...63..185Z |url=https://zenodo.org/record/1236062}}</ref> Because Phobos has similarities to [[C-type asteroid]]s and because the Kaidun meteorite is a [[carbonaceous chondrite]], Kaidun is not a Martian meteorite in the strict sense. However, it may contain small fragments of material from the Martian surface.

The Martian meteorite [[NWA 7034]] (nicknamed "Black Beauty"), found in the [[Sahara desert]] during 2011, has ten times the [[Asteroidal water|water content]] of other Mars meteorites found on Earth.<ref name="NASA-20130103" /> The meteorite contains components as old as 4.42 ± 0.07 Ga (billion years),<ref>{{Cite journal|last1=Nyquist|first1=Laurence E.|last2=Shih|first2=Chi-Yu|last3=McCubbin|first3=Francis M.|last4=Santos|first4=Alison R.|last5=Shearer|first5=Charles K.|last6=Peng|first6=Zhan X.|last7=Burger|first7=Paul V.|last8=Agee|first8=Carl B.|date=2016-02-17|title=Rb-Sr and Sm-Nd isotopic and REE studies of igneous components in the bulk matrix domain of Martian breccia Northwest Africa 7034|journal=Meteoritics & Planetary Science|language=en|volume=51|issue=3|pages=483–498|doi=10.1111/maps.12606|issn=1086-9379|bibcode=2016M&PS...51..483N|s2cid=131565237 |doi-access=free}}</ref> and was heated during the [[Geological history of Mars#Crater density timescale|Amazonian geologic period]] on Mars.<ref>{{Cite journal|last1=Cassata|first1=William S.|last2=Cohen|first2=Benjamin E.|last3=Mark|first3=Darren F.|last4=Trappitsch|first4=Reto|last5=Crow|first5=Carolyn A.|last6=Wimpenny|first6=Joshua|last7=Lee|first7=Martin R.|last8=Smith|first8=Caroline L.|date=2018-05-01|title=Chronology of martian breccia NWA 7034 and the formation of the martian crustal dichotomy|journal=Science Advances|language=en|volume=4|issue=5|pages=eaap8306|doi=10.1126/sciadv.aap8306|pmid=29806017|pmc=5966191|issn=2375-2548|bibcode=2018SciA....4.8306C}}</ref>

A meteorite that fell in 1986 in Dayanpo, China contained a magnesium silicate mineral called "[[Elgoresyite|Elgoresyte]]", a mineral not found on Earth.<ref>{{Cite web|title=A Mineral Unknown On Earth Could Be The Most Abundant Mineral On Mars|url=https://www.geologyin.com/2021/08/a-mineral-unknown-on-earth-could-be.html |date=2021-08-09 |work=Geology In |access-date=2021-08-18|language=en}}</ref>