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Northwest Africa 4482
Basic information Name: Northwest Africa 4482
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4482
Observed fall: No
Year found: 2006
Country: Algeria
Mass:help 5.81 kg
Classification
  history:
Meteoritical Bulletin:  MB 92  (2007)  Pallasite-Main gr
Recommended:  Pallasite, PMG    [explanation]

This is 1 of 43 approved meteorites (plus 1 unapproved name) classified as Pallasite, PMG.   [show all]
Search for other: Main group pallasites, Metal-rich meteorites, and Pallasites
Comments: Approved 24 Jul 2007
Revised 26 May 2009: Revised pallasite classifications
Writeuphelp
Writeup from MB 92:

Northwest Africa 4482

Algeria

Find: August 2006

Pallasite (main group)

History: G. Hupé purchased the sample in August 2006 in Tagounite, Morocco.

Physical characteristics: The meteorite consists of a total of 30 dark, magnetic fragments containing yellowish-green silicate in a dark brown matrix.The fragments have a combined weight of 5816 g.

Petrography: (A. Irving and S. Kuehner, UWS) Large olivine grains (up to 8 mm across) with interstitial, porous, banded iron hydroxides enclosing sparse angular grains of terrestrial quartz, and accessory chromite, schreibersite and fresh metal (both kamacite and taenite).

Mineral compositions and geochemistry: Olivine (Fa12.2-13.0, FeO/MnO = 41.1-42.5). Oxygen Isotopes: (D. Rumble, CIW) analysis of acid-washed handpicked olivine by laser fluorination gave δ18O = 3.65, δ17O = 1.72, Δ17O = -0.198(all in ‰).

Classification: Pallasite (main group). The original metal in this specimen is almost entirely weathered to iron hydroxides.

Specimens: A total of 20.1 g of sample, one polished thin section and one polished mount are on deposit at UWS. GHupé holds the main mass.

Data from:
  MB92
  Table 2
  Line 79:
Place of purchase:Tagounite, Morocco
Date:Aug-2006
Mass (g):5812
Pieces:30
Class:Pal
Type spec mass (g):20.1
Plots: O isotopes:  
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)
CIW: Carnegie Insitution Washington, Geophysical Laboratory, 5251 Broad Branch Rd., NW, Washington DC 20015, United States (institutional address)
GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
The Hupe Collection      
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Aeroliths Collection Theodossiou            
Alan Mazur   
Alexsander Borges Ribeiro   
André Knöfel   
David L. Ribeca   
Denis gourgues   
Fabiano Monteiro   
Francois Pacaud   
Gerald Armstrong   
jean bernard Delbauve   
John Lutzon   
Krzysztof Nowak   
Luis Alexandre Franco Gonçales   
METEORITICON         
Michael S. Scherman      
Michal Tomecek   
Nuno Chaves                           
Philippe Geniez      
Piotr gural100   
Robert Zdancewicz   
Roy E. Wrånes   
Russ Opdahl   
The Wilcox Collection of Meteorites   
Wang Ziyao      
Woreczko Jan & Wadi   
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 961 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)

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