Lunar Meteorite: Northwest Africa 8010

Morocco

Northwest Africa 8010 (58 g). Photo credit: Matt Morgan

A slice of NWA 8010. Photo credit: Matt Morgan

The interior of the meteorite is quite stunning. Photo credits: Matt Morgan

Lab sample of NWA 8010. Photo credit: Randy Korotev

from The Meteoritical Bulletin, No. 102

Northwest Africa 8010 (NWA 8010)

Morocco
Found: 2013
Mass: 58 g (1 piece)

Classification: Lunar meteorite (feldspathic breccia)

History: Reported found near Zagora, 2013.

Physical characteristics: Single stone, gray-brown fusion crust, black melt veins visible through the crust. Saw cut reveals dark breccia clasts with fragmental feldspar and light fine-grained clasts up to 1-2 cm, bounded by black shock melt veins 1-4 mm wide, melt veins contain vesicles up to 1 mm.

Petrography: (C. Agee, UNM) Fragmental breccia with melt veins. Anorthositic and gabbroic clasts, fragmental plagioclase, pyroxene, olivine, oxides and sulfides set in a cataclastic groundmass. Abundant glassy melt veins with suspended submicron metal/sulfide blebs, plumose quench crystal zones up to 1 mm wide at groundmass cooling contacts. Vesicles confined mostly in the center of melt veins. Shock melt spherule 500 µm.

Geochemistry: (C. Agee and N. Muttik, UNM). Olivine Fa31.7±7.5, Fe/Mn=93±5, n=14; forsteritic olivine Fa7.4±1.5, Fe/Mn=100±16, n=2; pyroxene Fs33.8±11.1Wo17.0±9.9, Fe/Mn=57±7, n=21; plagioclase An96.2±1.3Ab3.4±1.2Or0.4±0.2, n=10; glassy impact melt (mean value from EMPA with 20 µm beam) SiO2=45.55±1.28, TiO2=0.52±0.23, Al2O3=25.34±2.86, Cr2O3=0.13±0.03, MgO=7.54±2.21, FeO=5.99±1.03, MnO=0.08±0.03, CaO=14.35±1.41, Na2O=0.42±0.16, K2O=0.16±0.07 (all wt%), n=7.

Classification: Achondrite (lunar meteorite). Feldspathic impact melt breccia. Chemical composition of glassy impact melt (proxy for bulk composition) is that of high-alumina basalt.

Specimens: A total of 11.6 g, including a probe mount, is on deposit at UNMMtMorgan and Reed hold the main mass.

Randy Says…

NWA 8010 is a feldspathic lunar meteorite that is moderately rich in KREEP elements with a composition like Apollo 16 soil. It is possibly paired with NWA 10973.

More Information

Meteoritical Bulletin Database

NWA 8010

References

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

Korotev R. L. and Irving A. J. (2021) Lunar meteorites from northern Africa. Meteoritics & Planetary Science, 206–240. 

Miley H. M., Agee C. B., Korotev R. L., Muttik N., and Morgan M. (2014) Northwest Africa 8010: Feldspathic regolith breccia with abundant crystalline lunar spherules. 45th Lunar and Planetary Science Conference, abstract no. 2823

Lunar Meteorites | List of Lunar meteorites