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Northwest Africa 14731 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14731 This is an OFFICIAL meteorite name. Abbreviation: NWA 14731 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: 45 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 32 approved meteorites classified as Lunar (frag. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 19 Mar 2022 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 14731 (NWA 14731) (Northwest Africa) Purchased: 2019 Classification: Lunar meteorite (frag. breccia) History: Purchased February, 2019 by anonymous collector from a Moroccan dealer Physical characteristics: Many small identical looking stones mostly covered in caliche. No fusion crust present. Saw cut reveals a light and dark colored brecciated interior, with some vesicles and other melt features. Petrography: (A Ross, UNM; D. Dickens, NMMS) This meteorite is a fragmental breccia of plagioclase, pyroxene, and olivine grains. Analysis of BSE images with ImageJ shows the major phases are plagioclase that has been converted to maskelynite being the dominant phase and equal parts pyroxene, olivine, and unconverted plagioclase being the other major phases. The minor phases include kamacite, ilmenite, and troilite. Some Cr-spinels with Mg+Al+Ti were detected. Geochemistry: (A. Ross, UNM) olivine Fa: 29.2±7.1, Fe/Mn=95±7, n=10; clinopyroxene Fs27.2±5.9Wo8.3±2.0, Fe/Mn=54±4, n=8; plagioclase An96.7±0.3, n=6; Classification: Lunar fragmental breccia Specimens: 9 g including a probe mount on deposit at UNM, anonymous collector holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB111 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. 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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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