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Northwest Africa 7959
Basic information Name: Northwest Africa 7959
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7959
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 156 g
Meteoritical Bulletin:  MB 102  (2013)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 334 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 30 Nov 2013
Writeup from MB 102:

Northwest Africa 7959 (NWA 7959)

(Northwest Africa)

Purchased: 2013 Jun

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Stefan Ralew in June 2013 from a Moroccan dealer at the Ensisheim Show.

Petrography: (A. Irving and S. Kuehner, UWS) Angular mineral clasts are set in a fine grained, vesicular glassy matrix. Minerals are olivine, orthopyroxene, pigeonite, augite, anorthite, ilmenite and small, ragged grains of kamacite. Small amounts of terrestrial calcite and barite are present.

Geochemistry: Olivine (Fa14.7-35.9, FeO/MnO = 77-107), orthopyroxene (Fs17.3Wo2.5, FeO/MnO = 55), pigeonite (Fs23.6-24.4Wo9.9-11.4, FeO/MnO = 47-49), augite (Fs13.2Wo40.6, FeO/MnO = 36), anorthite (An96.0-96.1Or0.0). Bulk composition (R. Korotev, WUSL): INAA of subsamples gave mean abundances of FeO 3.3 wt.%, and (in ppm) Sc 19, La 2.6, Sm 1.2, Eu 0.78, Yb 0.8, Th 0.4.

Classification: Lunar (feldspathic regolithic breccia).

Specimens: 20.2 g are at UWB. The remainder is with Ralew.

Data from:
  Table 0
  Line 0:
Place of purchase:Ensisheim
Date:P 2013 Jun
Mass (g):156
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):14.7-35.9
Ferrosilite (mol%):17.3; 23.6-24.4; 13.2
Wollastonite (mol%):2.5; 9.9-11.4; 40.6
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.2
Type spec location:UWB
Main mass:S. Ralew
Comments:#138; submitted by A. Irving
   and collections
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)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
Ralew: Stefan Ralew, Kunibertstra├če 29, 12524 Berlin, Germany; Website (private address)
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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     This is 1 of 9559 approved meteorites from (Northwest Africa) (plus 1872 unapproved names)

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