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Northeast Africa 024 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northeast Africa 024 This is an OFFICIAL meteorite name. Abbreviation: NEA 024 Observed fall: No Year found: 2020 Country: Libya Mass: 98.6 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 487 approved meteorites classified as LL3. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||
Comments: | Approved 10 Apr 2021 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 110:
Northeast Africa 024 (NEA 024) Libya Purchased: 2020 Aug Classification: Ordinary chondrite (LL3) History: Purchased by Mbark Arjdal in August 2020 from a Libyan dealer. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed glass-bearing chondrules (apparent diameter 870±350 µm, N = 25) are set in a dark, fine grained matrix containing troilite and altered kamacite. Some chondrules have intermediate plagioclase present. Geochemistry: Olivine (Fa23.1±16.7, range Fa1.9-55.2, N = 12; Cr2O3 in ferroan olivine 0.04-0.22 wt.%, mean 0.10±0.06 wt.%, N = 10), low-Ca pyroxene (Fs11.1±8.2Wo0.8±0.6, range Fs5.3-16.9Wo0.4-1.2, N = 2), pigeonite (Fs14.9±4.8Wo5.4±1.3, range Fs10.5-20.0Wo4.5-6.9, N = 3), subcalcic augite (Fs15.8±3.3Wo33.8±3.5, range Fs13.4-18.1Wo31.3-36.3, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.84. Classification: Ordinary chondrite (LL3). Specimens: 20.1 g including one polished thin section at UWB; remainder with Mr. M. Arjdal. | ||||||||||||||||||||||||||||||||
Data from: MB110 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., 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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Geography: |
Statistics: This is 1 of 1553 approved meteorites from Libya (plus 24 unapproved names) (plus 2 impact craters) | ||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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