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Northwest Africa 13005
Basic information Name: Northwest Africa 13005
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13005
Observed fall: No
Year found: 2019
Country: Morocco
Mass:help 716 g
Meteoritical Bulletin:  MB 108  (2020)  Iron, IIIAB
Recommended:  Iron, IIIAB    [explanation]

This is 1 of 331 approved meteorites classified as Iron, IIIAB.   [show all]
Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 23 Dec 2019
Writeup from MB 108:

Northwest Africa 13005 (NWA 13005)


Purchased: 2019 Jan

Classification: Iron meteorite (IIIAB)

History: Purchased in January 2019 via the internet from Moroccan dealer Lahcen ait Ha, who found the meteorite in Morocco.

Physical characteristics: The meteorite is irregularly shaped, and measures approximately 8 cm × 10 cm × 5 cm. It has a dark brown outer surface, with minor rust spots.

Petrography: (C. Herd, UAb) Optical investigation of a ~3.5 × 2.5 cm polished and etched slice reveals a well-developed Widmanstatten pattern consistent with a medium octahedrite (1.01 ± 0.25 mm; n=21). Several mm-scale lath-shaped schreibersite inclusions are present. Terrestrial alteration appears to have only affected the exterior surface.

Geochemistry: ICP-MS data, using sample of North Chile (Filomena) as standard (C. Herd and G. Chen UAb): Ni = 8.5, Co = 0.49 (both wt%); Ir = 0.13, Ga = 22, As = 12.7, W = 0.4, Ru = 2.7, Rh = 1.1, Pd = 4.0, Os = 0.34, Pt = 4.7, Cu = 127, Au = 1.5 (all μg/g).

Classification: (C. Herd, UAb): IIIAB iron, medium octahedrite.

Specimens: Type specimen consisting of a 22.2 g representative slice at UAb. Main mass with Craig Zlimen.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2019 Jan
Mass (g):716
Class:Iron, IIIAB
Shock stage:low
Weathering grade:low
Classifier:C. Herd, UAb
Type spec mass (g):22.2
Type spec location:UAb
Main mass:Craig Zlimen
Comments:Field number Zli16; submitted by C. Herd
   and collections
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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     This is 1 of 1847 approved meteorites from Morocco (plus 24 unapproved names) (plus 1 impact crater)

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