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Northwest Africa 15234 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15234 This is an OFFICIAL meteorite name. Abbreviation: NWA 15234 Observed fall: No Year found: 2022 Country: (Northwest Africa) Mass: 564 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 102 approved meteorites classified as Eucrite-melt breccia. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 5 Sep 2022 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 15234 (NWA 15234) (Northwest Africa) Purchased: August 2022 Classification: HED achondrite (Eucrite, melt breccia) History: The meteorite was purchased from a meteorite dealer in Morocco. Physical characteristics: Grayish rock without fusion crust. Petrography: Eucrite-melt breccia composed of up to 1.5 cm basaltic clasts and up to 0.3 mm sized mineral fragments in fine-grained and mostly recrystallized shock melted matrix. Main minerals are exsolved pyroxenes and calcic plagioclase. Mineral grains entrained in the melt matrix often show resorption textures. Minor phases include silica, chromite, ilmenite, and FeS. No metallic iron has been detected. Contains secondary calcite veins and barite. Geochemistry: low-Ca pyroxene: Fs60.1±0.8Wo2.3±0.1 (Fs59.4-60.5Wo2.1-2.5, FeO/MnO=29-30, n=7); augite exsolution lamellae: Fs24.9±0.2Wo44.5±0.4 (Fs24.5-25.1Wo44.2-45.4, FeO/MnO=28-32, n=7); calcic plagioclase: An90.2±0.9 (An89.6-91.7, 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) Polandmet: targoniny 30 43445 Dziegielow Poland, Poland; Website (institutional address; updated 7 May 2021) |
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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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