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| Northwest Africa 11043 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 11043 This is an OFFICIAL meteorite name. Abbreviation: NWA 11043 Observed fall: No Year found: 2016 Country: Mauritania Mass:  544 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 322 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite). [show all] Search for other: Martian meteorites | ||||||||||||||||||||||||||||||
| Comments: | Approved 7 Feb 2017 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 106:
Northwest Africa 11043 (NWA 11043) Mauritania Purchased: 2016 Classification: Martian meteorite (Shergottite) History: Purchased by Abdelhadi Aithiba in Mauritania, 2016, reportedly found in Mali. Physical characteristics: One piece, no fusion crust, significant amount of the exterior is covered with light-orange desert soil; some scattered patches of green silicates are exposed. Fresh broken surface reveals medium to coarse grains of predominantly olivine and pyroxene. Petrography: (C. Agee, UNM) Microprobe examination of polished mount shows approximately 80 % of this sample consisting of poikilitic olivine and pyroxene grains most in the size range 500-1000 μm. Plagioclase appears to have been completely transformed to maskelynite. Geochemistry: (C. Agee, B. Ha, UNM) olivine Fa36.4±1.2, Fe/Mn=49±1, NiO=0.06±0.02 (wt%), n=7; pigeonite Fs28.2±2.0Wo11.0±2.0, Fe/Mn=28±1, n=9; augite Fs18.3±1.0Wo30.6±2.6, Fe/Mn=25±1, n=13; maskelynite Ab37.6±1.2An60.7±1.3Or1.6±0.2, n=7. Classification: Martian (shergottite), petrologically equilibrated ultramafic rock, poikilitic shergottite group. No known pairings, but pyroxene and olivine compositions are similar to RBT 04262, NWA 7755, and NWA 8161. Specimens: 20.5 g, including a probe mount, on deposit at UNM, Abdelhadi Aithiba 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) |
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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:
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Statistics: This is 1 of 221 approved meteorites from Mauritania (plus 2 unapproved names) (plus 2 impact craters) | ||||||||||||||||||||||||||||||
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| Also see: |
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| Revision history: |
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