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Northwest Africa 14741 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14741 This is an OFFICIAL meteorite name. Abbreviation: NWA 14741 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: 19.1 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 21 approved meteorites classified as Lunar (bas. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 20 Jun 2022 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 14741 (NWA 14741) (Northwest Africa) Purchased: 2021 Nov Classification: Lunar meteorite (basaltic breccia) History: Purchased by Matthew Stream in November 2021 from a dealer in Agadir, Morocco. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) The studied small endcut is a breccia consisting of several mare basalt clasts (exhibiting intergranular and microgabbroic textures) set within a fine grained matrix. The matrix is highly microvesicular (with pervasive calcite infillings) and has a quenched melt rock texture surrounding numerous small mineral clasts. The larger lithic clasts are composed of olivine, zoned clinopyroxene and calcic plagioclase (apparently crystalline) together with accessory ilmenite, baddeleyite, merrillite (rare earth element-bearing), medium-Ti chromite, troilite and rare kamacite. Some secondary barite is present in the matrix. Geochemistry: Olivine (Fa29.1-53.6, FeO/MnO = 95-106, N = 6), pigeonite (Fs24.3Wo13.9, FeO/MnO = 57), ferropigeonite (Fs68.9Wo21.2, FeO/MnO = 69), subcalcic augite (Fs16.9-22.8Wo35.8-34.9, FeO/MnO = 48-54, N = 2), plagioclase (An83.2-84.5Or0.5-0.3, N = 3). Classification: Lunar (basaltic breccia, microvesicular). Specimens: 3.82 g in the form of a polished endcut at UWB; remainder with Mr. M. Stream. | ||||||||||||||||||||||||||||||
Data from: MB111 Table 0 Line 0: |
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Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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