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Northwest Africa 11168
Basic information Name: Northwest Africa 11168
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11168
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 321 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 188 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 9 Mar 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11168 (NWA 11168)

(Northwest Africa)

Purchased: 2016

Classification: Mesosiderite

History: The meteorite was bought in 2016 from a meteorite dealer in Morocco.

Physical characteristics: Four small, brownish individuals without fusion crust totalling 321 gram.

Petrography: The meteorite is a breccia composed of silicate and metallic regions of highly variable portions. The metallic lithology consists of kamacite and taenite, the silica fraction is dominated by up to 0.5 µm sized low-Ca pyroxene, less abundant olivine, calcic plagioclase and minor silica and merrillite.

Geochemistry: olivine: Fa12.2±0.1 (Fa12.0-12.4, n=11, FeO/MnO=36-45); low-Ca pyroxene: Fs27.7±1.5Wo2.6±0.9 (Fs25.3-29.6Wo1.2-4.0, n=13, FeO/MnO=22-29); calcic plagioclase: An88.6±3.5 (An83.5-94.8, n=18)

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2016
Mass (g):321
Pieces:4
Class:Mesosiderite
Shock stage:S1
Weathering grade:W1
Fayalite (mol%):12.2
Ferrosilite (mol%):27.7
Wollastonite (mol%):2.6
Classifier:A. Greshake, MNB
Type spec mass (g):24.2
Type spec location:MNB
Main mass:Marcin Cimala
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Stefano Prosperi   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

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