Astronomy:Orthopyroxenite
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Orthopyroxenite is an ultramafic and ultrabasic rock that is almost exclusively made from the mineral orthopyroxene, the orthorhombic version of pyroxene and a type of pyroxenite. It can have up to a few percent of olivine and clinopyroxene.
Orthopyroxenites can also occur on other planets. ALH 84001 is a Martian meteorite that can be classified as an orthopyroxenite. It is the only meteorite found with that composition and the only member of the Martian orthopyroxenite group of meteorites.[1]
References
- ↑ "ALH 84001". Meteoritical Society. http://www.lpi.usra.edu/meteor/metbull.php?code=604.
![]() | Original source: https://en.wikipedia.org/wiki/Orthopyroxenite.
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