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Northwest Africa 11159
Basic information Name: Northwest Africa 11159
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11159
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 10.7 g
Meteoritical Bulletin:  MB 106  (2018)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 288 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 4 Mar 2017
Writeup from MB 106:

Northwest Africa 11159 (NWA 11159)

(Northwest Africa)

Purchased: 2016

Classification: Lunar meteorite (feldspathic breccia)

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

Physical characteristics: Small dark-gray to black individual without fusion crust.

Petrography: The meteorite is a fragmental breccia composed of lithic and mineral clasts cemented by a vesicular vitreous groundmass. Lithic clasts include gabbroic, basaltic and melt clasts; mineral clasts are dominantly anorthite, ferroan olivine, pigeonite, Ca-pyroxene and low-Ca pyroxene. Minor phases include ilmenite, fayalite, and FeS.

Geochemistry: olivine: Fa38.4±9.4 (Fa32.3-59.4, n=20, FeO/MnO=107±15); low-Ca pyroxene: Fs50.3±12.3Wo3.4±0.7 (Fs30.3-60.9Wo2.3-4.7, n=10, FeO/MnO=35±9); pigeonite: Fs31.2±9.7Wo11.7±4.1 (Fs20.9-58.3Wo5.8-19.5, n=22, FeO/MnO=58±5); Ca pyroxene: Fs7.9±1.6Wo31.5±2.8 (Fs15.6-21.4Wo25.5-35.4, n=10, FeO/MnO=45±4); calcic plagioclase: An97.3±0.5 (An96.4-98.1, n=13)

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2016
Mass (g):10.7
Class:Lunar (feldsp. breccia)
Shock stage:moderate
Weathering grade:moderate
Fayalite (mol%):38.4
Ferrosilite (mol%):50.3; 31.2; 7.9
Wollastonite (mol%):3.4; 9.7; 31.5
Classifier:A. Greshake, MNB
Type spec mass (g):2.2
Type spec location:MNB
Main mass:Alan Mazur
Comments:Submitted by Ansgar Greshake
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
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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     This is 1 of 8744 approved meteorites from (Northwest Africa) (plus 1879 unapproved names)

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