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Northwest Africa 10461 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10461 This is an OFFICIAL meteorite name. Abbreviation: NWA 10461 Observed fall: No Year found: 2015 Country: (Northwest Africa) Mass: 286 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 340 approved meteorites classified as Lunar (feldsp. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 13 Jan 2016 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 105:
Northwest Africa 10461 (NWA 10461) (Northwest Africa) Purchased: 2015 Aug Classification: Lunar meteorite (feldspathic breccia) History: Purchased by Jean Redelsperger from Aziz Habibi in Agadir, Morocco, August 2015. Reportedly found near the border with Mauritania. Physical characteristics: Two identical appearing pieces 233.8 g and 51.95 g, with irregular exterior, no fusion crust. A saw cut reveals a polymict breccia with numerous fragmental light and dark clasts. Petrography: (C. Agee, UNM) This breccia has numerous fragmental olivine, pyroxene, and plagioclase grains. There are also microgabbro clasts scattered throughout, as well as shock melt veins and pockets. Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa26.8±8.5, Fe/Mn=93±9, n=23; low-Ca pyroxene Fs31.9±9.5Wo4.6±2.8, Fe/Mn=58±6, n=16; augite Fs23.4±10.5Wo34.6±9.8, Fe/Mn=53±10, n=10; plagioclase An96.1±0.5, n=19; Shock melt (20 μm defocused electron beam, proxy for bulk meteorite composition): SiO2=43.3±0.4, TiO2=0.19±0.05, Al2O3=28.9±2.5, Cr2O3=0.10±0.03, MgO=6.5±2.5, FeO=4.3±1.3, MnO=0.06±0.02, CaO=16.1±1.4, NiO=0.01±0.01, Na2O=0.35±0.02, K2O=0.04±0.01 (all wt%), n=10. Classification: Lunar (feldspathic breccia) Specimens: 20.11 g including a probe mount on deposit at UNM, Jean Redelsperger 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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Photos: |
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Geography: |
Statistics: This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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