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Northwest Africa 8254 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8254 This is an OFFICIAL meteorite name. Abbreviation: NWA 8254 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 218 approved meteorites classified as Eucrite-br. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 25 Nov 2014 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 103:
Northwest Africa 8254 (NWA 8254) (Northwest Africa) Purchased: 2013 Classification: HED achondrite (Eucrite, brecciated) History: Purchased in Morocco in 2013 by Hmani Inc. Petrography: (A. Irving and S. Kuehner, UWS) Eucrite breccia containing irregularly distributed, ragged grains of stained kamacite (with minor associated taenite). The predominant clast lithology is basaltic eucrite, but a variety of pyroxenes is present as mineral clasts as well as calcic plagioclase, fayalitic olivine, ilmenite (with inclusions of baddeleyite), Al-bearing chromite and troilite. Geochemistry: Pigeonite (Fs34.7Wo5.4, FeO/MnO = 33; Fs43.5-47.2Wo27.0-22.7, FeO/MnO = 35-37), subcalcic augite (Fs37.8Wo33.4, FeO/MnO = 33), orthopyroxene (Fs62.9Wo4.5, FeO/MnO = 35), olivine (Fa83.3-85.2, FeO/MnO = 43-45). Classification: Eucrite-br, metal-rich. Specimens: 20.5 g including one polished thin section at UWB. The remaining material is held by Hmani. | ||||||||||||||||||||||||||||||
Data from: MB103 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) UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) Hmani: A. Hmani Moroccan Imports, 13 rue Jules Hardouin Mansart, 92600 Asnières, France (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |