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Northwest Africa 8622 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8622 This is an OFFICIAL meteorite name. Abbreviation: NWA 8622 Observed fall: No Year found: 2013 Country: Morocco Mass: 104 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 658 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
Comments: | Approved 25 Nov 2014 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 103:
Northwest Africa 8622 (NWA 8622) Morocco Purchased: 2013 Classification: Ureilite History: Purchased in 2013 in Agadir Physical characteristics: Full oriented stone. Light gray fusion crust with flow lines. Petrography: (J. Gattacceca, CEREGE) Consists mostly of euhedral olivine with reduced margin. Grain size 1.5 mm. Metal and weathering products around grains and as micrometrer-sized blebs in the olivine. Carbon (graphite or diamond) clusters are present. Geochemistry: Olivine cores Fa21.4±0.1 (N=4), FeO/MnO=46.0. Olivine CaO 0.37 wt.%, Cr2O3=0.75 wt.%. Olivine rim Fa12.4 (N=1). Pigeonite Fs14.7Wo7.2 (N=1). Magnetic susceptibility log χ = 4.39 (χ in 10-9 m3/kg). Classification: Ureilite. Strong weathering Specimens: 20 g in CEREGE, main mass with Labenne | ||||||||||||||||||||||||||||||
Data from: MB103 Table 0 Line 0: |
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Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 10 Jun 2023) Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012) |
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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 2068 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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