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Northwest Africa 11199
Basic information Name: Northwest Africa 11199
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11199
Observed fall: No
Year found: 2016
Country: Algeria
Mass:help 1069 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Iron, IIIAB
Recommended:  Iron, IIIAB    [explanation]

This is 1 of 311 approved meteorites classified as Iron, IIIAB.   [show all]
Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 17 Apr 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11199 (NWA 11199)

Algeria

Purchased: June 2016

Classification: Iron meteorite (IIIAB)

History: A single specimen weighing 1069 g, reported found near Tamanghasset, Algeria.

Physical characteristics: The main mass has a dark brown exterior and is irregular in shape, with a single, spherical depression approximate 10 cm across.

Petrography: (C. Herd, UAb) Polished and etched surfaces show a regular Widmanstätten pattern with an average bandwith of 1.0±0.2 mm (n=18), consistent with a medium octahedrite. Areas of plessite are visible. Few sulfide or phosphide inclusions were observed; however, only a relatively small cut surface was examined.

Geochemistry: ICP-MS data, using sample of North Chile (Filomena) as standard (C. Herd and G. Chen UAb): Ni = 10.4, Co = 0.52 (both wt%); Cu = 129, Ga = 19, As = 14.2, Ru = 1.5, W = 0.25, Ir = 0.04, Pd = 3.7, Pt = 2.2, Au = 1.4 (all μg/g).

Classification: IIIAB, medium octahedrite.

Specimens: Type specimen consisting of a 27.9 g representative end piece at UAb. Main mass with Kuntz.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Guelmim
Date:P June 2016
Mass (g):1069
Pieces:1
Class:Iron, IIIAB
Shock stage:low
Weathering grade:low
Classifier:C. Herd, UAb
Type spec mass (g):28.0
Type spec location:UAb
Main mass:F. Kuntz
Comments:Field name K314; submitted by C. Herd
Institutions
   and collections
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
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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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 979 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)

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