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Northwest Africa 4398 | |||||||||||||
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Basic information | Name: Northwest Africa 4398 This is an OFFICIAL meteorite name. Abbreviation: NWA 4398 Observed fall: No Year found: 2005 Country: (Northwest Africa) Mass: ![]() | ||||||||||||
Classification history: |
This is 1 of 274 approved meteorites classified as Eucrite-mmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||
Comments: | Approved 24 Jul 2007 | ||||||||||||
Writeup![]() |
Writeup from MB 92:
Northwest Africa 4398 Morocco Find: 2005 Achondrite (eucrite, monomict) History:The meteorite was recovered by an anonymous finder in northwest Africa and purchased by the main mass holder in Midelt, Morocco. Physical characteristics:A single stone of 228 g was recovered. Petrography: (A. Greshake, MNB). The meteorite displays a largely unbrecciated basaltic texture with calcic plagioclase and exsolved low-Ca pyroxene being the major phases. Minor phases include silica, ilmenite, and Al,Ti-rich chromite. Mineral compositions: Plagioclase (An78.2-87.2) and pyroxene (Fs31.2-61.1Wo4.6-40.5). Classification:Achondrite (eucrite, monomict); moderate shock, minimal weathering. Type specimens: A total of 20.3 g of sample plus one polished thin section are on deposit at MNB. Ralew holds the main mass. | ||||||||||||
Data from: MB92 Table 2 Line 68: |
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Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)
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Photos: |
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Geography: |
Statistics: This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names) |