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| Northwest Africa 11641 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 11641 This is an OFFICIAL meteorite name. Abbreviation: NWA 11641 Observed fall: No Year found: 2017 Country: (Northwest Africa) Mass:  650 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 630 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
| Comments: | Approved 20 Feb 2018 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 107:
Northwest Africa 11641 (NWA 11641) (Northwest Africa) Purchased: 2017 Classification: Ureilite History: The meteorite was purchased from a local meteorite dealer in Mali. Physical characteristics: Dark bownish fragment lacking any fusion crust. Petrography: The meteorite shows a cumulate texture composed of up to 1 mm sized olivine and pigeonite grains. Olivine displays characteristic reduced rims and the meteorite contains abundant flaky graphite. Geochemistry: reduced rims in olivine: Fa4.7-8.8; olivine contains 0.61±0.02 wt% Cr2O3 and 0.34±0.01 wt% CaO | ||||||||||||||||||||||||||||||
| Data from: MB107 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 Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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| Photos: |
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| Geography: |
Statistics: This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names) | ||||||||||||||||||||||||||||||