E&PS_WU_logo.jpg

 

Lunar Meteorite

Northwest Africa 11243 & [unnamed 111]
(presumed paired stones)

northwestern Africa

 

Northwest Africa 11243
(photo credit: Ken Regelman)

Lab sample of Northwest Africa 11243
(photo credit: Randy Korotev)

 

Lab sample of unnamed 111
(photo credit: Randy Korotev)

 

from The Meteoritical Bulletin, No. 106

Northwest Africa 11243

Northwestern Africa
Purchased: December 2017
Mass: 80 g

Lunar meteorite

History: Purchased by Ken Regelman in December 2016 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of angular mineral fragments and sparse olivine noritic lithic clasts in a finer grained matrix. Minerals are anorthite, olivine, orthopyroxene, pigeonite, ferropigeonite, fayalite, silica polymorph, Al-Ti-chromite, kamacite, ilmenite, troilite and calcite.

Geochemistry: Olivine (Fa23.3, FeO/MnO = 101), orthopyroxene (Fs12.9-26.3Wo4.2-2.4, FeO/MnO = 60-74, N = 2), pigeonite (Fs30.1Wo8.7, FeO/MnO = 66), ferropigeonite (Fs61.1Wo24.4, FeO/MnO = 64), fayalite (Fa87.4, FeO/MnO = 80), anorthite (An97.7-98.3Or0.3-0.1, N = 2).

Classification: Lunar (feldspathic breccia).

Specimens: 16.24 g including one polished slice at UWB; remainder with Mr. K. Regelman.

 

 

Randy Says…

These two stones may not be paired, but they are very similar in composition.

 

More Information

Meteoritical Bulletin Database

NWA 11243

References

 

 

 

 

Back to: Lunar Meteorites | List of Lunar Meteorites | Top of Page

 

 

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: 3 April 2018