Lunar Meteorite

Northwest Africa 10973

northwestern Africa




Two sawn faces of Northwest Africa 10973 
(photo credit: John Higgins)


from The Meteoritical Bulletin, No. 105

Northwest Africa 10973

(Northwestern Africa)
Purchased: 2016 Sep
Mass: 25 g

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by John Higgins in September 2016 from a dealer in Nouakchott, Mauritania.

Physical characteristics: A single dark stone (25 g) lacking fusion crust. The fresh interior exhibits small white clasts within a dominant, dark-gray matrix containing sparse vesicles.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of small angular mineral clasts of anorthite, bytownite, pigeonite, olivine, orthopyroxene, Mg-merrillite, ilmenite and kamacite in a finer matrix containing sparse vesicles.

Geochemistry: Olivine (Fa40.1-47.0, FeO/MnO = 84-88, N = 3), orthopyroxene (Fs24.2-36.7Wo4.9-4.1, FeO/MnO = 52-56, N = 2), pigeonite (Fs24.8Wo14.7, FeO/MnO = 46; Fs43.4Wo17.6, FeO/MnO = 54), plagioclase (An90.3Or0.4; An81.5Or1.4; N = 2).

Classification: Lunar (feldspathic regolith breccia).

Specimens: 5.01 g including one polished slice at UWB; remainder with Mr. J. Higgins.


Randy Says…

May be paired with NWA 8010. Both have vesicular melt veins and pockets.


More Information

Meteoritical Bulletin Database

NWA 10973



Korotev R. L. and Irving A. J. (2017) Still not keeping up with the lunar meteorites – 2017. 48th Lunar and Planetary Science Conference, abstract no. 1498.



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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 you've found until you read this and this.


Last revised: 9-March-2017