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Northwest Africa 11161
Basic information Name: Northwest Africa 11161
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11161
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 1250 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 516 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 4 Mar 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11161 (NWA 11161)

(Northwest Africa)

Purchased: 2016

Classification: Ureilite

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

Physical characteristics: Large brownish individual lacking any fusion crust.

Petrography: The meteorite shows a cumulate texture of blocky, up to 1.5 mm sized Cr-rich olivine and pigeonite crystals. It contains some flaky graphite; olivine displays characteristic reduced rims.

Geochemistry: reduced rims: Fa5.1-10.0; Cr2O3 in olivine: ~0.6wt%

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2016
Mass (g):1250
Pieces:1
Class:Ureilite
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):15.5±0.3 (n=12)
Ferrosilite (mol%):14.1±0.3 (n=14)
Wollastonite (mol%):6.4±0.1 (n=14)
Classifier:A. Greshake, MNB
Type spec mass (g):20.5
Type spec location:MNB
Main mass:A. Pani
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Pani: A. Pani, Meteorites-Minerals-Fossils, Lassallestr. 4/20, A-1020 Vienna, Austria; Website (private 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.
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

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