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Northwest Africa 13634 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13634 This is an OFFICIAL meteorite name. Abbreviation: NWA 13634 Observed fall: No Year found: 2017 Country: Morocco Mass: 134.9 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 451 approved meteorites classified as Howardite. [show all] Search for other: Achondrites, HED achondrites, and Howardites | ||||||||||||||||||||||||||||||
Comments: | Approved 16 Dec 2020 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 13634 (NWA 13634) Morocco Purchased: 2017 Classification: HED achondrite (Howardite) History: Purchased from AJ meteorites, found June 2017, Morocco. Physical characteristics: Single stone partially covered in weathered fusion crust. A saw cut reveals a breccia with light and dark clasts set in a light-tan matrix. Petrography: (C. Agee, UNM) This meteorite is a polymict breccia consisting of approximately 55% diogenite and 45% eucrite clasts. Accessory opaques, fayalitic olivine, and silica observed. Geochemistry: (C. Agee, UNM) Diogenite low-Ca pyroxene Fs27.1±3.1Wo3.1±0.4, Fe/Mn=28±2, n=11; eucrite low-Ca pyroxene Fs53.4±6.4Wo5.6±3.4, Fe/Mn=31±2, n=9; plagioclase An90.2±2.7, n=7. Classification: Howardite Specimens: 20.1 g on deposit at UNM, Simon de Boer holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB109 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 Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 2068 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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