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Northwest Africa 12972 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12972 This is an OFFICIAL meteorite name. Abbreviation: NWA 12972 Observed fall: No Year found: 2017 Country: (Northwest Africa) Mass: 1013 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 3298 approved meteorites (plus 1 unapproved name) classified as LL5. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 23 Dec 2019 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 108:
Northwest Africa 12972 (NWA 12972) (Northwest Africa) Purchased: 2017 Mar Classification: Ordinary chondrite (LL5) History: Purchased by Adam Aaronson in March 2017 from a dealer in Zagora, Morocco. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Sparse chondrules occur within a recrystallized matrix containing lightly-stained metal. Geochemistry: Olivine (Fa33.3±0.1 (range Fa33.2-33.5, N = 6), low-Ca pyroxene (Fs26.8±0.2Wo2.5±0.1 (range Fs26.4-27.1Wo2.3-2.6, N = 6), high-Ca pyroxene (Fs11.0Wo43.9). Classification: Ordinary chondrite (LL5). Specimens: 24 g including one polished thin section at UWB; remainder with Aaronson. | ||||||||||||||||||||||||||||||
Data from: MB108 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) Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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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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