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Northwest Africa 11446
Basic information Name: Northwest Africa 11446
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11446
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 13 kg
Meteoritical Bulletin:  MB 106  (2018)  Iron, IIAB
Recommended:  Iron, IIAB    [explanation]

This is 1 of 145 approved meteorites classified as Iron, IIAB.   [show all]
Search for other: IIAB irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 13 Oct 2017
Writeup from MB 106:

Northwest Africa 11446 (NWA 11446)

(Northwest Africa)

Purchased: 2015 Jan 08

Classification: Iron meteorite (IIAB)

History: no writeup

Petrography: Iron is a hexahedrite. It contains three round FeS nodules in an area of ~150 cm2. Fragmental schreibersites 0.2 to 1 mm long are in rough arrays. There is discoloration indicating some reheating in the event that fragmented the schreibersites. In regions not discolored there are many tiny rhabdites 0.2 to 0.1 mm in length. Weathering is minor. but no reheated zone was recognized.

Geochemistry: Composition: Co, 4.50 mg/g; Ni, 56.1 mg/g; Ga, 58.0 μg/g; Ge, ~153 μg/g; As, 4.16 μg/g; W, 3.12 μg/g; Ir 11.4 μg/g; Au, 0.548 μg/g.

Classification: Meteorite is a IIAB iron, towards the upper end of the Ir range. Based on its composition, it is paired with NWA 3202.

Data from:
  Table 0
  Line 0:
Place of purchase:Rissany, Morocco
Date:P 2015 Jan 08
Mass (g):13000
Class:Iron, IIAB
Weathering grade:low
Classifier:J.T. Wasson, UCLA
Type spec mass (g):228
Type spec location:UCLA
Main mass:Aaronson
Comments:Submitted by Wasson
   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)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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     This is 1 of 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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