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Northwest Africa 4233
Basic information Name: Northwest Africa 4233
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4233
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass:help 444 g
Classification
  history:
Meteoritical Bulletin:  MB 91  (2007)  IAB complex
Recommended:  Iron, IAB complex    [explanation]

This is 1 of 68 approved meteorites (plus 1 unapproved name) classified as Iron, IAB complex.   [show all]
Search for other: IAB complex irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 1 Sep 2006
Writeuphelp
Writeup from MB 91:

Northwest Africa 4233

Morocco

Find: 2004

Iron (IAB complex)

History: A single iron mass was purchased at the Hamburg Mineral Fair, Germany, from a Moroccan dealer in 2004. Physical characteristics: The 444 g mass has an angular shape. One side reflects the Widmanstätten structure, because rust veins follow those structure elements.

Petrography: (J. Schlüter, Ham) The bandwidth of kamacite lamellae is 0.5 mm. Rare inclusions of schreibersite. Geochemistry: (B. Spettel, Mainz) Composition of the metal (INAA) is Co = 4.82, Ni = 123 (both mg/g); Ga = 26.8, Ge = 45.0, As = 13.5, Ir = 1.38, Au = 1.74 (all as µg/g).

Classification: Iron meteorite (IAB), fine octahedrite.

Type specimen: A total of 22.4 g sample is on deposit at Hamb. Gren holds the main mass.

Data from:
  MB91
  Table 2
  Line 234:
Date:2004
Mass (g):444
Pieces:1
Class:IAB
Classifier:J. Schlüter, Ham
Type spec mass (g):22.4
Type spec location:Ham
Main mass:Gren
Institutions
   and collections
Hamb: Mineralogisches Museum, Universität of Hamburg, Grindelallee 48, D-20146 Hamburg, Germany; Website (institutional address; updated 22 Feb 2013)
Gren: Andreas Gren, Hamburg, Germany (private address)
Ham: Mineralogisches Museum, Universität of Hamburg, Grindelallee 48, D-20146 Hamburg, Germany; Website (institutional address; updated 22 Feb 2013)
Mainz: Max-Planck-Institut für Chemie, Abteilung Kosmochemie, Postfach 3060, D-55020 Mainz, Germany; Website (institutional address; updated 7 Nov 2015)
Catalogs:
References: Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Andreas Gren   
Don Edwards   
Polandmet   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Mirko Graul      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

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