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Northwest Africa 8184 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8184 This is an OFFICIAL meteorite name. Abbreviation: NWA 8184 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: 4.3 kg | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 51 approved meteorites classified as L3.7. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 4 Feb 2014 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 103:
Northwest Africa 8184 (NWA 8184) (Northwest Africa) Purchased: 2013 Classification: Ordinary chondrite (L3.7) History: Purchased from Aziz Habibi, Erfoud, Morocco, in November 2013. Physical characteristics: Single stone with sand blasted surface, partly preserved fusion crust. Saw cut reveals numerous chondrules and metal/sulfide grains set in a gray-green groundmass, some oxide staining. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows distinct chondrules, many are porphyritic with igneous zoning and fine-grained plagioclase. Iron-nickel metal and troilite throughout, often rimming chondrules, some Fe-oxide veinlets. Geochemistry: (C. Agee and H. Miley, UNM) Olivine Fa24.1±5.3, Fe/Mn=57±15, n=31; low-Ca pyroxene Fs14.6±5.6Wo1.8±2.3, Fe/Mn=25±8, n=22; plagioclase Ab63. Classification: Ordinary chondrite (L3.7), type 3.7 based on Fa and Fs mean values and standard deviation. Weathering grade W2, shock stage S2. Specimens: 29.5 g end piece including a probe mount on deposit at UNM, Tomasz Jakubowski holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB103 Table 0 Line 0: |
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Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography: |
Statistics: This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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