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Northwest Africa 7288
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:help 256 g
Meteoritical Bulletin:  MB 102  (2013)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2861 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 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:
  Table 0
  Line 0:
Origin or pseudonym:Tindouf
Place of purchase:Agadir
Mass (g):256.1
Shock stage:S3
Weathering grade:W1
Fayalite (mol%):30.0 (29.3-30.5, n=16)
Ferrosilite (mol%):24.8 (24.4-25.2, n=2)
Wollastonite (mol%):2.4 (2.0-2.7)
Magnetic suscept.:3.61
Type spec mass (g):21.3
Type spec location:MNRJ
Main mass:Bart
Comments:Submitted by R. Bartoschewitz
   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)
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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     This is 1 of 8745 approved meteorites from (Northwest Africa) (plus 1880 unapproved names)

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