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Lunar Meteorite

Northwest Africa 11159

northwestern Africa

 

 

from The Meteoritical Bulletin, No. 106

 

Northwest Africa 11159

 

(Northwestern Africa)

Purchased: 2016

Mass: 10.7 g

 

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: (A. Greshake, MNB) 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)

 

Specimens: 2.2 g MNB

         

Randy Says…

I don’t have a sample of this one.

 

More Information

Meteoritical Bulletin Database

NWA 11159 

 

 

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Prepared by: Randy L. Korotev

Department of Earth and Planetary Sciences
Washington University in St. Louis

Please don’t contact me about the meteorite you think that
you’ve found until you read this and this.

 

e-mailkorotev@wustl.edu

Last revised: 27 January 2018