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Northwest Africa 3163
Basic information Name: Northwest Africa 3163
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 3163
Observed fall: No
Year found: 2001
Country: (Northwest Africa)
Mass:help 1634 g
Classification
  history:
Meteoritical Bulletin:  MB 90  (2006)  Lunar (feldspathic granulitic impactite)
Recommended:  Lunar    [explanation]

This is 1 of 98 approved meteorites classified as Lunar.   [show all]
Search for other: Lunar meteorites
Comments: Approved 3 Feb 2006
Writeuphelp
Writeup from MB 90:

Northwest Africa 3163

Mauritania or Algeria

Find: August 2005

Achondrite (lunar, feldspathic granulitic impactite)

History: In August 2005, G. Hupé purchased a 1634 g stone from a Moroccan dealer in Ouarzazate.

Petrography and Geochemistry: (A. Irving and S. Kuehner, UWS) The exterior is almost completely coated by a thin, transparent, greenish fusion crust. The pale gray interior has multiple shock fractures (with very minor calcite coatings) and some thin glass veins. Poikiloblastic recrystallized breccia, with larger grains of plagioclase (~70 vol%) enclosing much smaller grains (less than 100 µm across) of pyroxenes (~20 vol%), olivine (~10 vol%), and accessory Ti-chromite (Cr/(Cr+Al) = 0.714–0.736; Mg/(Mg+Fe) = 0.121– 0.143; TiO2 = 9.1–18.4 wt%), ilmenite, troilite, and metal (Ni = ~15 wt%). Anorthitic plagioclase (An97.4–98.2) has been converted by shock almost entirely to maskelynite (although domains of birefringent, less-shocked feldspar remain). Pigeonitic pyroxene grains have very fine-scale exsolution lamellae of augite (Fs14.5–16.1Wo40.2–40.5; FeO/MnO = 41.7– 43.8) within orthopyroxene (Fs32.0–33.9Wo4.4–5.8; FeO/MnO = 55.5–61.2). Olivine (Fa38.0–40.9; FeO/MnO = 91.7–110).

Classification: Achondrite (lunar, feldspathic granulitic impactite).

Specimens: A 20.1 g type specimen and one polished thin section are on deposit at UWS. GHupé holds the main mass.

Data from:
  MB90
  Table 2
  Line 194:
Place of purchase:Ouarzazate
Date:Aug 2005
Mass (g):1634
Pieces:1
Class:Lunar
Type spec mass (g):20.1
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)
GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 90, MAPS 41, 1383-1418 (2006)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Don Edwards   
Randy Korotev   
The Hupe Collection      
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Chris Handler Photo added 19 Apr 2022
David Campbell Photo added 19 Apr 2022
Doug R   
Gerald Armstrong Photo added 19 Apr 2022
MeteoriteCollector.org - FCOM - Russ Finney Photo added 19 Apr 2022
Michael S. Scherman   
Rene Schmit Photo added 19 Apr 2022
steve sutton Photo added 19 Apr 2022
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8674 approved meteorites from (Northwest Africa) (plus 1882 unapproved names)

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