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Northwest Africa 10447
Basic information Name: Northwest Africa 10447
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10447
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 21.7 g
Meteoritical Bulletin:  MB 104  (2015)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 280 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)

(Northwest Africa)

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.

Data from:
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2015 May
Mass (g):21.73
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):37.0; 73.9
Ferrosilite (mol%):20.5; 31.6; 29.1
Wollastonite (mol%):25.4; 37.5; 11.7
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):4.44
Type spec location:PSF
Main mass:F. Kuntz
Comments:K279; submitted by A. Irving
   and collections
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)
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 8636 approved meteorites from (Northwest Africa) (plus 1884 unapproved names)

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