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Northwest Africa 13036
Basic information Name: Northwest Africa 13036
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13036
Observed fall: No
Year found: 2019
Country: Morocco
Mass:help 1780 g
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 201 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 9 Feb 2020
Writeup from MB 109:

Northwest Africa 13036 (NWA 13036)


Purchased: 2019 Oct

Classification: Lunar (feldsp. melt breccia)

History: A group of stones found together near Tichiya, southern Morocco, was purchased jointly by Adam Aaronson and Ahmad Bouragaa.

Physical characteristics: The stones (total weight 1780 g) lack fusion crust but have a dark external weathering patina. Interiors are light gray and very fine grained with visible tiny rounded vesicles.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Very fine grained specimen dominated by microvesicular, melt-textured crystalline material surrounding sparse small feldspathic lithic clasts. Minerals are anorthite, olivine, orthopyroxene, subcalcic augite, chromite, troilite and secondary barite.

Geochemistry: Olivine (Fa28.6-36.8, FeO/MnO = 73-93, N = 7), orthopyroxene (Fs17.4Wo3.4, FeO/MnO = 58), subcalcic augite (Fs23.0Wo20.3, FeO/MnO = 42), anorthite (An95.9-97.5Or0.1, N = 3).

Classification: Lunar (feldspathic melt breccia).

Specimens: 21 g including one polished mount at UWB; remainder with A. Bouragaa and Aaronson.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:Tichiya
Place of purchase:Ouarzazate
Date:P 2019 Oct
Mass (g):1780
Class:Lunar (feldsp. melt breccia)
Shock stage:high
Weathering grade:low
Fayalite (mol%):28.6-36.8
Ferrosilite (mol%):17.4; 23.0
Wollastonite (mol%):3.4; 20.3
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):21
Type spec location:UWB
Main mass:A. Aaronson/A. Bouragaa
Comments:Work names M2221 and AB#85; submitted by A. Irving
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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     This is 1 of 1505 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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