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Northwest Africa 5555 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 5555 This is an OFFICIAL meteorite name. Abbreviation: NWA 5555 Observed fall: No Year found: 2008 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 643 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
Comments: | Approved 26 Jul 2016 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 105:
Northwest Africa 5555 (NWA 5555) (Northwest Africa) Purchased: 2008 Classification: Ureilite History: The meteorite was bought in 2008 from a Moroccan meteorite dealer on a meteorite fair in Ensisheim, France. Petrography: The meteorite displays a recrystallized texture composed of up to 2 mm sized olivine (Fa9.0±0.1, n=16) and pigeonite (Fs8.2±0.1Wo9.0±0.1, n=16) grains. Olivine shows characteristic reduced rims. Additionally, it contains rare orthopyroxene with Fs8.0Wo5.0, N=4. Geochemistry: reduced rims in olivine: Fa3.3-6.8; Cr2O3 in ol: ~0.6 wt% | ||||||||||||||||||||||||||||||
Data from: MB105 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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Photos: |
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Geography: |
Statistics: This is 1 of 9344 approved meteorites from (Northwest Africa) (plus 1872 unapproved names) |