MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 27 Nov 2022
Search for: Search type: Search limits: Display: Publication:
Text help
Starts with
Sounds like
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
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
Meteoritical Bulletin:  MB 94  (2008)  Lunar granulitic breccia
Recommended:  Lunar    [explanation]

This is 1 of 99 approved meteorites classified as Lunar.   [show all]
Search for other: Lunar meteorites
Comments: Approved 8 Sep 2008
Writeup from MB 94:

Northwest Africa 4483


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:
  Table 2
  Line 32:
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
   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)
References: Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
Find references in NASA ADS:
Find references in Google Scholar:
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 Photo added 20 Oct 2022
Dirk Hohmann   
Photo added 20 Oct 2022
Gerald Armstrong Photo added 20 Oct 2022
ironee Photo added 20 Oct 2022
Krzysztof Nowak Photo added 20 Oct 2022
MeteoriteCollector.org - FCOM - Russ Finney Photo added 20 Oct 2022
Mike Smith Photo added 20 Oct 2022
Robert Zdancewicz Photo added 20 Oct 2022


     This is 1 of 1232 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

Direct link to this page