Meteoritical Bulletin: Entry for Northwest Africa 4233

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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: 444 g

Classification
history:

Meteoritical Bulletin:	MB 91	(2007)	IAB complex
Recommended:			Iron, IAB complex [explanation]

This is 1 of 82 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

Writeup

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)

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

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