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Northwest Africa 14973 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14973 This is an OFFICIAL meteorite name. Abbreviation: NWA 14973 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: 769 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 2923 approved meteorites (plus 2 unapproved names) classified as LL6. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 18 May 2022 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 14973 (NWA 14973) (Northwest Africa) Purchased: 2021 Aug Classification: Ordinary chondrite (LL6) History: Purchased by Jason Whitcomb in August 2021 from an Algerian dealer. Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Breccia composed of lithic chondrite clasts in a sparse fine grained matrix. The clasts contain some remnant chondrules, but are largely recrystallized and contain sodic plagioclase, kamacite, troilite, chromite and chlorapatite, plus minor secondary barite and calcite. Geochemistry: Olivine (Fa32.0±0.9, range Fa31.1-33.4, N = 6), low-Ca pyroxene (Fs25.6±0.4Wo2.2±0.3, range Fs25.3-26.2Wo1.9-2.5, N = 4), pigeonite (Fs23.0Wo12.9), augite (Fs11.6±0.3Wo42.4±0.1, range Fs11.4-11.8Wo42.3-42.5, N = 2). Classification: Ordinary chondrite (LL6 breccia). Specimens: 24.1 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb. | ||||||||||||||||||||||||||||||
Data from: MB111 Table 0 Line 0: |
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Institutions and collections |
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011) UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024) |
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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 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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