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Northwest Africa 11528 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11528 This is an OFFICIAL meteorite name. Abbreviation: NWA 11528 Observed fall: No Year found: 2017 Country: Western Sahara Mass: 627 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 2930 approved meteorites (plus 2 unapproved names) classified as LL6. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 21 Nov 2017 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 106:
Northwest Africa 11528 (NWA 11528) Western Sahara Purchased: 2017 Classification: Ordinary chondrite (LL6) History: Found in the region of Leagad, Western Sahara, near the Moroccan military wall in May 2017; purchased in June 2017. Physical characteristics: Single stone; saw cut reveals faint chondrules set in a brown-orange groundmass. Petrography: (C. Agee, UNM) Microprobe examination shows texturally equilibrated, recrystallized chondrules. Plagioclase grain size up to 200 μm in diameter. Geochemistry: (C. Agee, UNM) Olivine Fa28.1±0.3, Fe/Mn=57±2, n=7; low-Ca pyroxene Fs23.1±0.1Wo3.5±0.4, Fe/Mn=33±1, n=6; plagioclase An20.1±6.2Ab74.8±4.4Or5.1±1.8, n=3. Classification: Ordinary chondrite (LL6) Specimens: 22.7 g on deposit at UNM, DPitt holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB106 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) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
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Catalogs: |
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References: | Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography: |
Statistics: This is 1 of 280 approved meteorites from Western Sahara (plus 20 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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