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==Geologic occurrences== Kamacite meteorites have been found on every continent on Earth and have also been found on [[Mars]].<ref>{{Cite web|title=NASA - Magnified Look at a Meteorite on Mars|url=https://www.nasa.gov/mission_pages/mer/images/mer-20090810a.html|access-date=2020-10-05|website=www.nasa.gov|language=en|archive-date=28 September 2022|archive-url=https://web.archive.org/web/20220928085813/https://www.nasa.gov/mission_pages/mer/images/mer-20090810a.html|url-status=dead}}</ref> ===Meteorites=== Kamacite is primarily associated with meteorites because it needs high temperatures, low pressures and few other more reactive elements like oxygen. [[Chondrite]] meteorites can be split into groups based on the [[chondrule]]s present. There are three major types: enstatite chondrites, carbonaceous chondrites and ordinary chondrites. Ordinary chondrites are the most abundant type of meteorite found on Earth making up 85% of all meteorites recorded.<ref name="Norton p75-111"/> Ordinary chondrites are thought to have all originated from three different sources thus they come in three types LL, L, and H; LL stands for Low iron, Low metal, L stands for Low iron abundance, and H is High iron content. All ordinary chondrites contain kamacite in decreasing abundance as you move from H to LL chondrites.<ref>{{cite journal |last1=Rubin |first1=A. |last2=Jeffrey |first2=T. |last3=Maggiore |first3=P. |title=Kamacite and olivine in ordinary chondrites: Intergroup and intragroup relationships |journal=Geochimica et Cosmochimica Acta |year=1990 |volume=54 |issue=5 |pages=1217β1232 |doi=10.1016/0016-7037(90)90148-e |bibcode=1990GeCoA..54.1217R }}</ref> Kamacite is also found in many of the less common meteorites mesosiderites and E chondrites. E chondrites are chondrites which are made primarily of enstatite and only account for 2% of meteorites that fall onto the Earth. E chondrites have an entirely different source rock than that of the ordinary chondrites.<ref name="Norton p75-111" /> In analysis of kamacite in E chondrites it was found that they contain generally less nickel than average.<ref>{{cite journal |last1=Easton |first1=A. J. |title=Studies of kamacite, perryite and schreibersite in E-chondrites and aubrites |journal=Meteoritics |year=1986 |volume=21 |issue=1 |pages=79β93 |doi=10.1111/j.1945-5100.1986.tb01227.x|bibcode=1986Metic..21...79E |doi-access=free }}</ref> ===Abundance=== Since kamacite is only formed in space and is only found on Earth in meteorites, it has very low abundance on Earth. Its abundance outside the [[Solar System]] is difficult to determine. Iron, the main component of kamacite, is the sixth most abundant element in the universe and the most abundant of those elements generally considered metallic.<ref>[http://periodictable.com/Properties/A/UniverseAbundance.v.log.html Abundance in the Universe of the elements]</ref>
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