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Northwest Africa 2680
Basic information Name: Northwest Africa 2680
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2680
Observed fall: No
Year found: 2005
Country: Morocco
Mass:help 12.05 kg
Classification
  history:
Meteoritical Bulletin:  MB 99  (2011)  Iron, IAB-sLH
Recommended:  Iron, IAB-sLH    [explanation]

This is 1 of 10 approved meteorites classified as Iron, IAB-sLH.   [show all]
Search for other: IAB complex irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 21 Sep 2010
Writeuphelp
Writeup from MB 99:

Northwest Africa 2680 (NWA 2680)

Morocco

Purchased: 2005

Classification: Iron meteorite (IAB-sLH)

Petrography: Silicate-rich iron with 60-65 vol% metal which mainly consists of small domains each with a differently oriented octahedral pattern; typical size 0.6 to 1.0 cm. Within the domains, kamacite forms narrow lamellae with high (10-20) aspect ratios. Widest bands are ~0.15 mm, thus the metal structure is Off. Most domains are surrounded by swathing kamacite 0.2-0.3 mm thick. Angular silicate blocks are abundant, comprising 10-15 vol%; largest clast 5x1.5 mm. FeS also abundant, ~10 vol%. Schreibersite not confirmed. Based on structure, possibly paired with NWA 4024 and 5980 that are described as winonaites.

Geochemistry: Co (mg/g) 5.36, Ni (mg/g) 136.6, Ga (µg/g) 24.3, Ge (µg/g) <140, As (µg/g) 19.4, Ir (µg/g) 2.04, Au (µg/g) 1.73.

Submitter: J. T. Wasson, UCLA.

Data from:
  MB99
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2005
Mass (g):12050
Pieces:1
Class:Iron, IAB-sLH
Classifier:Wasson
Type spec mass (g):40
Type spec location:UCLA
Main mass:Birdsell
Comments:Submitted by Wasson
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Birdsell: Arizona Skies Meteorites, P.O. Box 2412, Flagstaff, AZ 86003, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Arizonaskies   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
akira1988   
Alessandro Takeda   
Gabriel Gonçalves Silva   
Mirko Graul         
Robert Zdancewicz   
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1417 approved meteorites from Morocco (plus 15 unapproved names) (plus 1 impact crater)

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