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Northwest Africa 8165
Basic information Name: Northwest Africa 8165
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8165
Observed fall: No
Year found: 2012
Country: Mauritania
Mass:help 125 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2790 approved meteorites (plus 1 unapproved name) 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 5 Sep 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 8165 (NWA 8165)

Mauritania

Find: 2012

Classification: Ordinary chondrite (LL6)

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 fragment of 125 g covered about 75% by dark-brown fusion curst with contraction cracks. Saw-cut shows brecciation of darker fragments in light brown matrix and few metallic spots. Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.36.

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

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine: Fa30.9±0.5 (Fa29.9-31.8; n=21). Pyroxene: Fs25.1Wo2.0 (Fs24.7-26.1, n=12). Feldspar: An9-11Or3-7 (n=8). Kamacite: Ni=3.7, Co=9.0 wt.% (n=2).

Classification: Ordinary chondrite (LL6)

Specimens: 20.3 g on deposit at Kiel, main mass Bart.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Nouadhibou
Date:2012
Mass (g):125
Pieces:1
Class:LL6
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):30.9 (29.9-31.8, n=21)
Ferrosilite (mol%):25.1 (24.7-26.2, n=12)
Wollastonite (mol%):2.0 (1.8-2.2)
Magnetic suscept.:3.36
Classifier:R. Bartoschewitz
Type spec mass (g):20.3
Type spec location:Kiel
Main mass:Bart
Finder:anonymous
Comments:nearly 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 114 approved meteorites from Mauritania (plus 1 unapproved name) (plus 2 impact craters)

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