Lunar Breccia Meteorite 0.8 gram full slice | The Moon
|Northwest Africa 10447|
Name: Northwest Africa 10447
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10447
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 21.7 g
This is 1 of 113 approved meteorites classified as Lunar (feldsp. breccia). [show all]
Search for other: Lunar meteorites
|Comments:||Approved 31 Dec 2015|
Writeup from MB 104:
Northwest Africa 10447 (NWA 10447)
Purchased: 2015 May
Classification: Lunar meteorite (feldspathic breccia)
History: Purportedly found with other similar stones near Al Mahbas, southern Morocco, and purchased by Fabien Kuntz in May 2015 from a dealer in Agadir, Morocco.
Physical characteristics: A single small stone (21.73 g) lacking fusion crust. The interior exhibits white, pale orange and light gray clasts set in a gray matrix (~25 vol.%).
Petrography: (A. Irving and S. Kuehner, UWS) Fragmental breccia composed of mineral clasts of anorthite, olivine, pigeonite, augite, subcalcic augite, ferropigeonite, fayalite, silica polymorph, Ti-Al-chromite, ilmenite, troilite and rare baddeleyite in a finer grained matrix.
Geochemistry: Olivine (Fa37.0-39.9, FeO/MnO = 97, N = 2), pigeonite (Fs29.1Wo11.7, FeO/MnO = 55), ferropigeonite (Fs65.9Wo7.3, FeO/MnO = 70), subcalcic augite (Fs20.5Wo25.4; Fs64.7Wo25.2; FeO/MnO = 55-70), augite (Fs31.6Wo37.5, FeO/MnO = 74), fayalite (Fa73.9, FeO/MnO = 106), plagioclase (An91.1-91.4Or0.1-0.4, N = 2). Bulk composition (R. Korotev, WUSL): INAA of subsamples gave the following mean abundances (in wt.%) FeO 15.3, Na2O 0.30; (in ppm) Sc 30.2, Ni 140, La 5.0, Sm 2.47, Eu 0.67, Yb 1.9, Lu 0.28, Hf 1.8, Th 0.8.
Classification: Lunar (feldspathic breccia).
Specimens: 4.44 g including a polished endcut at PSF; remainder with Kuntz.
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
Kuntz: Fabien Kuntz, France; Website (private address)
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