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Northwest Africa 11479
Basic information Name: Northwest Africa 11479
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11479
Observed fall: No
Year found: 2017
Country: Morocco
Mass:help 504 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Lunar (feldsp. breccia)
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 21 Nov 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11479 (NWA 11479)

Morocco

Purchased: September 2017

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Ke Zuokai in Sept. 2017 from a Moroccan dealer.

Physical characteristics: The meteorite has no fusion crust with an irregular shape. Small white clasts are visible.

Petrography: Lithic clasts and mineral fragments (10 to 500 μm) are set in a fine-grained anorthositic matrix. Mineral fragments are dominated by anorthite and pyroxene grains with minor olivine. Some pyroxene grains exhibit exsolved lamella structures. Maskelynite is present. Other accessory minerals include taenite, chromite, ilmenite and troilite.

Geochemistry: Plagioclase An94.1-97.9Or0.0-0.7, (average: An96.9±1.1Or0.2±0.2, n=13); Olivine Fa17.8-44.9, Fe/Mn (cation ratio) = 77.7 - 124.7, (average = 99.2±15.3, n=13 ); pigeonite Fs29.8-59.4En35.0-52.5Wo5.6-21.5, Fe/Mn (cation ratio) =57.4-74.4 (average=64.7±5.7, n=8); augite Fs7.4-27.6En29.1-49.1Wo38.4-43.5, Fe/Mn (cation ratio) =37.3-75.1 (average=58.4±12.1, n=10); minor orthopyroxene Fs36.3En61.0Wo2.7, Fe/Mn (cation ratio)=54.7, n=1

Classification: Lunar feldspathic breccia based on texture and composition.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Kunshan China
Date:P September 2017
Mass (g):504
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:Moderate
Weathering grade:Minor
Fayalite (mol%):28.3±9.87 (n=13)
Ferrosilite (mol%):29.81±14.15 (n=19)
Wollastonite (mol%):26.59±16.64 (n=19)
Classifier:Ke Z.
Type spec mass (g):20
Type spec location:PMO
Main mass:Ke Zuokai
Comments:Submitted by Hsu W.
Institutions
   and collections
PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011)
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:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1505 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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