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Northwest Africa 14570
Basic information Name: Northwest Africa 14570
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14570
Observed fall: No
Year found: 2017
Country: Morocco
Mass:help 1107 g
Classification
  history:
Recommended:  Iron, IAB complex    [explanation]

This is 1 of 79 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 29 Jan 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14570 (NWA 14570)

Morocco

Purchased: 2017

Classification: Iron meteorite (IAB complex)

History: Purchased by Ziyao Wang from Moroccan dealer Mohamed Sbai during the China (Hunan) Mineral and Gem Show in Chenzhou City in 2017

Physical characteristics: The approximately 10 × 8 × 4 cm mass has a mottled dark and light brown surface, with metal exposed in spots.

Petrography: (C. Herd and P. Hill, UAb) Examination of a polished and etched surface shows a Widmanstatten pattern with kamacite bandwidths consistent with coarse octahedrite (estimated from photos provided by the owner). A few sulfide inclusions are present; other inclusions were not observed. Terrestrial alteration extends into the interior along grain boundaries.

Geochemistry: ICP-MS data, using sample of North Chile (Filomena) as standard (C. Herd, P. Hill, and S. DuFrane UAb): Ni = 6.8, Co = 0.452 (both wt%); Ir = 2.4, Ga = 79, Ge = 333, As = 13.9, Sb = 0.300, Ru = 5.8, Re = 0.2, Os = 2.0, W = 0.8, Pt = 6.0, Cu = 148 (all µg/g).

Classification: (C. Herd and P. Hill, UAb): IAB iron, closest to Main Group subgroup. Coarse octahedrite (estimated). Au was not measured due to uncertainties associated with the solution ICP-MS method.

Specimens: Type specimen of 82.8 g at UAb. Main mass with Ziyao Wang.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Chenzhou City
Date:P 2017
Mass (g):1107
Pieces:1
Class:Iron, IAB complex
Shock stage:low
Weathering grade:low
Classifier:C. Herd, UAb
Type spec mass (g):82.8
Type spec location:UAb
Main mass:Ziyao Wang
Comments: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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Ziyao Wang   
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1902 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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