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Northwest Africa 7288 | |||||||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7288 This is an OFFICIAL meteorite name. Abbreviation: NWA 7288 Observed fall: No Year found: 2012 Country: (Northwest Africa) Mass: 256 g | ||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 2930 approved meteorites (plus 2 unapproved names) classified as LL6. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||
Comments: | Approved 29 Sep 2013 | ||||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 102:
Northwest Africa 7288 (NWA 7288) (Northwest Africa) Found: 2011 Classification: Ordinary chondrite (LL6) History: Discovered by local people in the Tindouf area in 2011, purchased in Agadir in 2012 Feb. Physical characteristics: Light-brown 256.1 g stone, with small knobby metal protuberances, saw-cut shows poorly defined chondrules set in fine-grained matrix. Magnetic susceptibility log χ = 3.61. Petrography: Microprobe examination of a thin section shows fine (mean 30 μm) matrix, bearing granophyric clasts (grain-size mean 0.2 mm) and pyroxene up to 2 mm, often with poikilitic olivine, and and rare poorly developed chondrules (~1.2 mm). Rare relict chondrules are present. Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) host: Olivine: Fa29.6-30.3, mean Fa30.0±0.3, n=4; Ca-rich pyroxene Fs11En47Wo42; kamacite Ni=4.1, Co=2.2; taenite Ni=29.7, Co=1.4. Clast: Fa29.3-30.5, mean Fa30.0±0.3, n=12; Ca-rich pyroxene Fs10En46Wo44; kamacite Fe=6.6, Co=3.1; taenite Ni=43.2, Co=0.96 (all wt.%). Classification: Ordinary Chondrite (LL6) Specimens: 21.3 g on deposit at MNRJ, main mass Bart. | ||||||||||||||||||||||||||||||||||||
Data from: MB102 Table 0 Line 0: |
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Institutions and collections |
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013) MNRJ: Museu Nacional, Quinta da Boa Vista, Rio de Janeiro, CEP 20940-040, Brazil (institutional address; updated 26 Dec 2011) Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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