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Northwest Africa 3136
Basic information Name: Northwest Africa 3136
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 3136
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass:help 95 g
Meteoritical Bulletin:  MB 89  (2005)  Lunar (basaltic regolith breccia)
MetBase:  v. 7.1  (2006)  Lunar (basalt)
Recommended:  Lunar (basalt)    [explanation]

This is 1 of 30 approved meteorites classified as Lunar (basalt).   [show all]
Search for other: Lunar meteorites
Writeup from MB 89:

Northwest Africa 3136

Algeria or Morocco

Purchased 2004 April

Lunar meteorite (basaltic regolith breccia)

An oriented 95.1 g shield-shaped stone with partial thin, pale brown fusion crust found in Algeria or Morocco was purchased in Tagounite by a Moroccan dealer for A. and G. Hupé (xHupé) in 2004 April.  The specimen has a thin, dark weathering varnish, but the interior is a very fresh, black, hard, vitreous-looking rock with small white to yellowish clasts.  Classification and mineralogy (S. Kuehner and A. Irving, UWS):  Polymict breccia consisting of mineral and lithic clasts derived predominantly from mare basalt and mare microgabbro lithologies, and additionally some highlands clasts, in a very fine grained, mostly crystalline and partly vitreous, vesicular matrix.  Mineral clasts include calcic plagioclase (An86-97), pyroxenes (orthopyroxene, ferropigeonite, ferrosilite, pyroxferroite; FeO/MnO = 68.9-75.8), olivine (mostly Fa30-43, but ranging to nearly pure fayalite; FeO/MnO = 81.9-94.2), ilmenite, Ni-poor Fe metal, troilite, Cr-bearing ulvöspinel, and rare pentlandite, baddeleyite, and a Ce-Ca-Fe-bearing, Zr-rich titanate (probably zirconolite).  A further description can be found in (Kuehner et al., 2005). Bulk compositions (R. Korotev, WUSL): INAA of several subsamples indicate that this specimen is dominated by mare components with ~20% lunar highland components (Korotev and Irving, 2005). Oxygen isotopes (D. Rumble, CIW): analyses of two whole rock fragments by laser fluorination gave δ18O = +5.83, 5.96, δ17O = +3.06, 3.10, Δ17O = -0.03, -0.05 per mil, respectively.   Specimens: type specimens, 19.5 g, two polished thin sections, and one polished mount, UWS; main mass, xHupé.

Data from:
  Table 7
  Line 474:
Origin or pseudonym:Northwest Africa
Mass (g):95
Plots: O isotopes:  
   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)
CIW: Carnegie Insitution Washington, Geophysical Laboratory, 5251 Broad Branch Rd., NW, Washington DC 20015, United States (institutional address)
xHupé: (old address—now see GHupé or AHupé) G. and A. Hupe, 2616 Lake Youngs Court SE, Renton, WA 98058., United States (private address)
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Photos from the Encyclopedia of Meteorites:
Don Edwards   
The Hupe Collection   

     This is 1 of 9806 approved meteorites from (Northwest Africa) (plus 1855 unapproved names)

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