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Northwest Africa 14867 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14867 This is an OFFICIAL meteorite name. Abbreviation: NWA 14867 Observed fall: No Year found: 2022 Country: (Northwest Africa) Mass: 1530 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 273 approved meteorites classified as Mesosiderite. [show all] Search for other: Mesosiderites, Metal-rich meteorites | ||||||||||||||||||||||||||||
Comments: | Approved 9 May 2022 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 14867 (NWA 14867) (Northwest Africa) Purchased: 2022 Jan Classification: Mesosiderite History: The meteorite was purchased from a meteorite dealer in Guelmim, Morocco. Physical characteristics: Many dark brownish fragments without fusion crust. Petrography: The meteorite displays a dark brownish interior and is composed of silicate (about 60 vol%) and metallic (about 40 vol%) portions. The silica fraction is composed of up to 700 µm sized weakly zoned and partly exsolved low-Ca pyroxene, Ca-pyroxene as blebby and lamellar exsolutions, and calcic plagioclase. Low-Ca-pyroxene contains abundant sulfide-metal blebs. Minor phases include silica, FeS, and merrillite. The metallic lithology is severely altered to Fe-oxides and -hydroxides. Geochemistry: zoned low-Ca pyroxene host crystals to augite exsolutions: Fs36.8±2.3Wo3.8±0.3 (Fs31.5-42.0Wo3.1-4.2, FeO/MnO=19-23, n=16); augite exsolutions: Fs18.2±0.6Wo40.0±1.0 (Fs16.7-19.0Wo38.4-41.9, FeO/MnO=16-22, n=17); calcic plagioclase: An92.9±2.9 (An84.3-95.2, n=18) | ||||||||||||||||||||||||||||
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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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