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Northwest Africa 14088 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14088 This is an OFFICIAL meteorite name. Abbreviation: NWA 14088 Observed fall: No Year found: 2021 Country: Mali Mass: 2.7 kg | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 9 approved meteorites classified as Lunar (troct. anorth.). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 24 Jul 2021 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 110:
Northwest Africa 14088 (NWA 14088) Mali Purchased: 2021 Classification: Lunar meteorite (troctolitic anorthosite) History: Reportedly found in 2019 in the vicinity of Taoudenni, Mali. Purchased by Jay Piatek from a meteorite dealer in January 2021. Physical characteristics: Single, flight-oriented stone, with fluted regmaglypts. The stone appears to have been partially buried for some time in the desert as approximately half of the it has sandblasted smooth dark fusion crust while the other half has fresher, greenish fusion crust with some caliche coating. A broken surface on the deposit sample reveals a white to light-gray interior with numerous dark colored glassy melt veins. Petrography: (C. Agee, UNM) This meteorite is a fine-grained anorthositic troctolite (Prinz and Keil, 1977) with plagioclase (~75%), olivine (~15%), and pigeonite (~10%) as dominant silicate phases. There are numerous shock melt veins present, most with abundant vesicles. Geochemistry: (A. Ross, UNM) Plagioclase An96.5±0.8Ab3.5±0.8Or0.0±0.0, n=4; olivine Fa28.8±3.5, Fe/Mn=94±8, n=6; pigeonite Fs22.9±1.5Wo13.3±2.9, Fe/Mn=50±6, n=5; augite Fs13.3Wo38.7, Fe/Mn=43, n=1; shock melt (20 μm defocused electron beam, proxy for bulk meteorite composition): SiO2=43.9±0.2, TiO2=0.16±0.01, Al2O3=30.2±0.4, Cr2O3=0.07±0.01, MgO=4.6±0.3, FeO=3.8±0.2, MnO=0.04±0.01, CaO=16.9±0.2, NiO=0.02±0.03, Na2O=0.39±0.01, K2O=0.03±0.00 (all wt%), Fe/Mn=103±20, n=3. Classification: Lunar (troctolitic anorthosite) based on Stoeffler et al. (1980)). Specimens: 45.1 g on deposit at UNM, Jay Piatek holds the main mass. | ||||||||||||||||||||||||||||||
Bibliography: |
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Data from: MB110 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., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography: |
Statistics: This is 1 of 111 approved meteorites from Mali (plus 2 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
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