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Northwest Africa 10902 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10902 This is an OFFICIAL meteorite name. Abbreviation: NWA 10902 Observed fall: No Year found: 2015 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 101 approved meteorites classified as Lunar. [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 21 Nov 2016 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 105:
Northwest Africa 10902 (NWA 10902) (Northwest Africa) Purchased: 2015 Classification: Lunar meteorite History: Purchased in 2015 by Brahim Tahiri in Morocco and sent to his partner Sean Tutorow for analysis. Physical characteristics: Two identical appearing stones, irregular exterior, no fusion crust. A saw cut reveals scattered light-gray feldspathic clasts set in a very dark groundmass. Petrography: (C. Agee, UNM) This is a polymict breccia showing several different textural domains: 1) basaltic clasts with phenocrysts and quench crystals, 2) zones of fragmental plagioclase, olivine, and pyroxene, 3) cataclastic zones of fine-grained silicates, 4) shock melt veins and pockets. Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa43.1±1.1, Fe/Mn=100±3, n=4; pigeonite Fs41.0±8.0Wo16.7±5.7, Fe/Mn=59±5, n=9; augite Fs29.5Wo44.1, Fe/Mn=60, n=1; plagioclase An95.9±0.8, n=4; Shock melt (proxy for bulk meteorite composition): SiO2=44.2±0.7, TiO2=0.36±0.07, Al2O3=24.6±1.5, Cr2O3=0.19±0.04, MgO=8.5±1.0, FeO=8.3±1.0, MnO=0.11±0.02, CaO=13.7±0.7, NiO=0.06±0.05, Na2O=0.36±0.06, K2O=0.10±0.03 (all wt%), n=9. Classification: Lunar meteorite. Intermediate breccia based on FeO and Al2O3 content. Specimens: 7.4 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB105 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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |