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Northeast Africa 009 | |||||||||||||||||||||||||||||
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Basic information | Name: Northeast Africa 009 This is an OFFICIAL meteorite name. Abbreviation: NEA 009 Observed fall: No Year found: 2020 Country: Libya Mass: 245 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 318 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite). [show all] Search for other: Martian meteorites | ||||||||||||||||||||||||||||
Comments: |
Approved 28 Mar 2020 Revised 27 Jun 2020: Renamed NWA 13243 to NEA 009 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northeast Africa 009 (formerly Northwest Africa 13243) (NEA 009) Libya Purchased: 2020 Jan Classification: Martian meteorite (Shergottite) History: A group of 20 similar-appearing stones found together in Libya was purchased by Mbark Arjdal in January 2020 from a Libyan dealer. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Relatively fine grained (mean grainsize 0.5 mm) aphyric assemblage of predominantly zoned clinopyroxene and maskelynite with accessory merrillite, ilmenite, ulvöspinel, pyrrhotite, alkali feldspar and rare silica polymorph. Sparse pockets of vesicular shock glass are present; in thin section these appear pale brown with a swirly texture and contain opaque inclusions. Geochemistry: Subcalcic augite (Fs20.6-25.7Wo35.9-27.9, FeO/MnO = 28-30, N = 4), pigeonite (Fs35.9-27.9Wo12.8-17.3, FeO/MnO = 35-38, N = 6), maskelynite (An56.8-60.6Or1.7-1.1, N = 4). Classification: Shergottite (aphyric). Specimens: 22.7 g including one polished thin section at UWB; remainder with Mr. M. Arjdal. | ||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 1550 approved meteorites from Libya (plus 23 unapproved names) (plus 2 impact craters) | ||||||||||||||||||||||||||||
Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
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Synonyms: |
Northwest Africa 13243 (Renamed from NWA to NEA) NWA 13243 (Renamed from NWA to NEA) | ||||||||||||||||||||||||||||
Revision history: |
This lists important revisions made to data for this record.
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