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Northwest Africa 14403 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14403 This is an OFFICIAL meteorite name. Abbreviation: NWA 14403 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 272 approved meteorites classified as Eucrite-mmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 31 Oct 2021 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 110:
Northwest Africa 14403 (NWA 14403) (Northwest Africa) Purchased: 2021 Classification: HED achondrite (Eucrite, monomict) History: Purchased by Matthew Stream from Ali Hnini and Mostafa Hnini in June 2021. Physical characteristics: Thirty similar appearing fusion crusted individuals. Brecciated texture is visible on the exterior with dark and light colored clasts. Petrography: (C. Agee and A. Ross, UNM) Reflected light microscopy and electron microprobe imaging shows that this meteorite is a fragmental breccia of basaltic eucrite with subophitic texture with ~60% pyroxene and ~35% plagioclase. Pyroxenes show exsolution lamellae and have a compositional continuum between low-Ca pyroxene and augite. Accessory phases are silica, ilmenite, troilite, chromite, and zircon. Geochemistry: (A. Ross, UNM) Pyroxene Fs50.9±14.2Wo19.2±16.0, Fe/Mn=32±1, n=12; plagioclase An87.3±1.9, n=6. Classification: Achondrite (monomict eucrite) Specimens: 26.11 g on deposit at UNM, Matthew Stream holds the main mass. | ||||||||||||||||||||||||||||
Data from: MB110 Table 0 Line 0: |
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Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) |
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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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Photos: |
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Geography: |
Statistics: This is 1 of 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names) |