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| Northwest Africa 14526 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 14526 This is an OFFICIAL meteorite name. Abbreviation: NWA 14526 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass:  505 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 28 approved meteorites classified as Lunar (basalt). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
| Comments: | Approved 15 Dec 2021 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Northwest Africa 14526 (NWA 14526) Northwest Africa Purchased: 2021 Classification: Lunar meteorite (basalt) History: Found in northwest Africa, purchased by Luc Labenne from meteorite dealer in 2021. Physical characteristics: Single stone with a smooth to irregular exterior surface with indentations resembling large vesicles; patches of sandblasted fusion crust were also observed. Freshly broken surface reveals a fine-grained mix of dark gray and light brown grains, shiny maskelynite patches are present. Unbrecciated. Petrography: (A. Ross and C. Agee, UNM) Backscattered electron images shown mm-size patches of igneous-zoned pyroxenes. Olivines are typically smaller grains up to 500 μm. Maskelynite makes up approximately 25% of the modal mineralogy, ubiquitous ilmenite ~3%, minor troilite, chromite and silica observed. Quench melt rock veins are present throughout. Geochemistry: (A. Ross and C. Agee, UNM) Olivine Fa60.6±15.3, Fe/Mn=104±5, n=10; clinopyroxene Fs36.3±9.3Wo16.8±7.9, Fe/Mn=60±7, n=19; maskelynite An85.8±5.6Ab13.6±5.6, n=6. Quench melt SiO2=44.4±0.4, TiO2=2.7±0.2, Cr2O3=0.46±0.01, Al2O3=8.3±0.7, MgO=10.7±0.6, FeO=24.5±0.8, MnO=0.30±0.02, CaO=8.8±0.3, Na2O=0.30±0.04, K2O=0.13±0.04 (all wt%, 30 micron defocused beam), n=4. Clinopyroxene shows Fe-enrichment trends that are continuous from Mg-augite and Mg-pigeonite to subcalcic-ferroaugite. Classification: Lunar (mare basalt). Based on the TiO2 content of quench melt this is meteorite is a low-Ti mare basalt (Giguere et al., 2000). Specimens: 20 g including a probe mount on deposit at UNM, Labenne 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) Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012) |
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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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| Photos: |
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| Geography: |
Statistics: This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||||
| Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
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| Revision history: |
This lists important revisions made to data for this record.
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