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Northwest Africa 4932
Basic information Name: Northwest Africa 4932
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4932
Observed fall: No
Year found: 2007
Country: Morocco
Mass:help 93.3 g
Classification
  history:
Meteoritical Bulletin:  MB 94  (2008)  Lunar feldspathic breccia
Recommended:  Lunar    [explanation]

This is 1 of 88 approved meteorites classified as Lunar.   [show all]
Search for other: Lunar meteorites
Comments: Approved 18 Aug 2008
Writeuphelp
Writeup from MB 94:

Northwest Africa 4932

Algeria

Find: October 2007

Achondrite (lunar, feldspathic breccia)

History: Purchased by Greg Hupé from a Moroccan dealer in Tagounite, Morocco, in October 2007.

Physical characteristics: A single, light colored 93.3 g stone. The interior is light gray, mostly very fine grained with a few white clasts (Fig. 2), and prominent but sparsely distributed metal grains (surrounded by hydroxide staining).

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of small gabbroic to troctolitic clasts (granular aggregates of rounded olivine grains and calcic plagioclase enclosed within low-Ca pyroxene with accessory Ti-chromite and troilite), sparse large grains of kamacite (up to 1 mm, partly altered to iron hydroxide) and rare large grains of silica polymorph in a dominant, very fine grained matrix of the same phases. There are secondary (terrestrial) veinlets and small patches of calcite.

Geochemistry: Low-Ca pyroxene (Fs22.3–22.8Wo5.9–5.3, FeO/ MnO = 51.9–53.0; Fs20.8–36.1Wo7.4–12.0, FeO/MnO = 56.5– 58.3), olivine (Fa27.2–36.9, FeO/MnO = 87.7–96.3), plagioclase (An94.9–96.4Or0.3–0.1). Bulk composition (R. Korotev, WUSL): FeO 8.5 wt%, Sc 19.2 ppm, Sm 1.1 ppm, Th 0.6 ppm, Ni 450 ppm. section are on deposit at UWS. The main mass is held by Mr. G. Hupé.

Data from:
  MB94
  Table 2
  Line 88:
State/Prov/County:Algeria
Date:Oct-2007
Mass (g):93
Pieces:1
Class:Lunar feldspathic breccia
Fayalite (mol%):27.2-36.9
Ferrosilite (mol%):22.3-22.8
Wollastonite (mol%):5.9-5.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):18.7
Type spec location:UWS
Main mass:GHupé
Institutions
   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)
GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Doug R   
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1406 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)

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