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Northwest Africa 4483
Basic information Name: Northwest Africa 4483
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4483
Observed fall: No
Year found: 2006
Country: Algeria
Mass:help 208 g
Classification
  history:
Meteoritical Bulletin:  MB 94  (2008)  Lunar granulitic breccia
Recommended:  Lunar    [explanation]

This is 1 of 88 approved meteorites classified as Lunar.   [show all]
Search for other: Lunar meteorites
Comments: Approved 8 Sep 2008
Writeuphelp
Writeup from MB 94:

Northwest Africa 4483

Algeria

Find: July 2006

Achondrite (lunar, granulitic breccia)

History: Purchased by Stefan Ralew in July 2006 from a dealer in Erfoud, Morocco.

Physical characteristics: Twelve broken fragments of very fine-grained, pale grey rock with a combined weight of 208 g.

Petrography: (A. Irving and S. Kuehner, UWS) Fine grained recrystallized breccia composed of larger plagioclase grains (converted mainly to maskelynite) poikilitically enclosing very small grains (mostly 30–80 μm) of low-Ca pyroxene (some with very fine augite exsolution lamellae), olivine, Ti-chromite, ilmenite, troilite, and metal.

Geochemistry: Olivine (Fa30.9–60.8, FeO/MnO = 88.1–106), plagioclase (An96.2–98Or<0.1), orthopyroxene (Fs14.3Wo2.0, FeO/MnO = 52.6), pigeonite (Fs36.4–75.1Wo6.3–13.5, FeO/MnO = 62.9–66.5).

Classification: Achondrite (lunar, granulitic breccia). Possibly paired with Northwest Africa 3163 (Irving et al. 2006).

Specimens: A total of 20 g and one polished mount are on deposit at UWS. Ralew holds the main mass.

Data from:
  MB94
  Table 2
  Line 32:
State/Prov/County:Algeria
Date:2006
Mass (g):208
Pieces:12 fragments
Class:Lunar granulitic breccia
Fayalite (mol%):30.9-60.8
Ferrosilite (mol%):14.3, 36.4-75.1
Wollastonite (mol%):2,6.3-13.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:UWS
Main mass:Ralew
Comments:Possibly paired with NWA 3163
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)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Chladni’s Heirs            
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Charley Kettel   
Dirk Hohmann      
Gerald Armstrong   
ironee   
Krzysztof Nowak   
MeteoriteCollector.org - FCOM - Russ Finney   
Mike Smith   
Robert Zdancewicz   
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 979 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)

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