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Northwest Africa 14642 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14642 This is an OFFICIAL meteorite name. Abbreviation: NWA 14642 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: 15 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 93 approved meteorites classified as Lodranite. [show all] Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites | ||||||||||||||||||||||||||||||||
Comments: | Approved 19 Mar 2022 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 14642 (NWA 14642) Lodranite, (Northwest Africa) Purchased: 2021 Nov Classification: Primitive achondrite (Lodranite) History: The meteorite was purchased from a group of meteorite hunters in Nouadhibou, Mauritania in November, 2021. Physical characteristics: Small grayish-greenish fragment with minor fusion crust. Petrography: The meteorite is a breccia composed of up to 5 mm sized mineral clasts with abundant fine-grained cataclastic zones of related material. Predominant minerals are augite, partly exsolved orthopyroxene, and olivine. Augite contains some orthopyroxene-chromite symplectites. Minor phases include chromite, FeS, and kamacite. No feldspar was found in the section studied. Geochemistry: Ca pyroxene: Fs4.3±0.1Wo43.4±0.5 (Fs4.1-4.5Wo42.6-44.0, FeO/MnO=12±2, n=7); low-Ca pyroxene: Fs9.6±0.2Wo2.1±0.4 (Fs9.4-9.9Wo1.3-2.5, FeO/MnO=18±1, n=7); olivine: Fa10.5±0.2 (Fa10.4-10.7, FeO/MnO=32±2, n=7) | ||||||||||||||||||||||||||||||||
Data from: MB111 Table 0 Line 0: |
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Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) |
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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) | ||||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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