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Northwest Africa 8166
Basic information Name: Northwest Africa 8166
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8166
Observed fall: No
Year found: 2012
Country: Mauritania
Mass:help 225 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  L6
Recommended:  L6    [explanation]

This is 1 of 11338 approved meteorites (plus 6 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 5 Sep 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 8166 (NWA 8166)

Mauritania

Find: 2012

Classification: Ordinary chondrite (L6)

History: Discovered by local people in the NW area of Mauritania in 2012, purchased in Nouadhibou in 2012 Oct.

Physical characteristics: (R. Bartoschewitz, Bart) One piece of 225 g completely covered with dark brown fusion curst. Saw-cut shows gray-brown matrix with light brown chondrules and metallic spots. Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.71.

Petrography: (R. Bartoschewitz, Bart) Microprobe examination of a thin section shows recrystallized matrix of olivine, pyroxene, feldspar, and poor developed barred olivine and granular chondrules.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine: Fa24.8±0.3 (Fa24.3-25.3; n=15). Ca-poor pyroxene: Fs20.7-21.5Wo1.6 (n=11); Ca-rich pyroxene: En48Wo44 (n=1). Feldspar: An10-11Or4-7 (n=9). Kamacite: Ni=3.7-6.4, Co=0.9-1.2 wt.% (n=5).

Classification: Ordinary chondrite (L6)

Specimens: 20.5 g on deposit at Kiel, main mass Bart.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Nouadhibou
Date:2012
Mass (g):225
Pieces:1
Class:L6
Shock stage:S3-4
Weathering grade:W1
Fayalite (mol%):24.8 (24.3-25.3, n=15)
Ferrosilite (mol%):21.0 (20.7-21.5, n=11)
Wollastonite (mol%):1.6 (1.3-1.9)
Magnetic suscept.:4.71
Classifier:R. Bartoschewitz
Type spec mass (g):20.5
Type spec location:Kiel
Main mass:Bart
Finder:anonymous
Comments:complete individual; submitted by R. Bartoschewitz
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)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Geography:

Mauritania
Coordinates:Unknown.

Statistics:
     This is 1 of 127 approved meteorites from Mauritania (plus 1 unapproved name) (plus 2 impact craters)

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