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Lunar Meteorite

Northwest Africa 10665

northwestern Africa

 

lm_nwa10665_K295-03.jpg

Sawn face of NWA 10665
(photo credit: Fabien Kuntz)

 

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Lab sample of NWA 10665. Click on image for enlargement.
(photo credit: Randy Korotev)

 

from The Meteoritical Bulletin, No. 105

Northwest Africa 10665

(Northwest Africa)
Purchased: 2016 March
Mass: 24.73 g

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Fabien Kuntz in March 2016 from a dealer in Zagora, Morocco.

Physical characteristics: A single dark stone (24.73 g) lacking fusion crust. The fresh interior contains ~30 vol% of white and beige clasts in a fine-grained black matrix.

Petrography: (A. Irving and S. Kuehner, UWS) Relatively fine-grained breccia composed of mineral fragments (anorthite, pigeonite, exsolved pigeonite, olivine, augite, chromite, ilmenite, troilite, kamacite) plus some glass fragments in a finer grained matrix.

Geochemistry: Olivine (Fa7.3; Fa26.7; Fa38.2; FeO/MnO = 74-87, N = 3), orthopyroxene host in exsolved pigeonite (Fs34.3Wo3.2, FeO/MnO = 48), pigeonite (Fs33.0Wo7.2, FeO/MnO = 49), augite (Fs16.3­Wo35.1-37.8; Fs11.0Wo42.3; FeO/MnO = 36-42, N = 3), plagioclase (An96.7-97.3Or0.1, N = 2).

Classification: Lunar (feldspathic breccia).

Specimens: 5.01 g in the form of one polished endcut at PSF; remainder with Kuntz.

 

 

Randy Says…

Northwest Africa 10665 is a typical feldspathic lunar meteorite, one compositionally most similar to NWA 7959.

 

More Information

Meteoritical Bulletin Database

NWA 10665

References

 

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.


e-mail
korotev@wustl.edu

Last revised: 05-February-2017