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Northwest Africa 15560
Basic information Name: Northwest Africa 15560
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15560
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 48 kg
Recommended:  Iron, IIAB    [explanation]

This is 1 of 146 approved meteorites classified as Iron, IIAB.   [show all]
Search for other: IIAB irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 4 Mar 2023
Writeup from MB 112:

Northwest Africa 15560 (NWA 15560)

(Northwest Africa)

Purchased: 2021

Classification: Iron meteorite (IIAB)

History: A single, 48 kg mass was purchased by Mark Lyon from a dealer in Mauritania in 2021. Reportedly found in Algeria.

Petrography: (C. Herd, UAb) Optical examination of a ~3 × 5 cm polished and etched surface reveals a fine-grained, equilibrated texture with no inclusions. No terrestrial alteration is evident.

Geochemistry: ICP-MS data, using sample of North Chile (Filomena) as standard (C. Herd and S. DuFrane UAb): Ni = 5.5, Co = 0.442 (both in wt%); Ir = 30, Ga = 59, Ge = 161, As = 3.7, Ru = 25, Pd = 1.6, Re = 2.6, W = 3.6, Pt = 35, Cu = 143, Au = 0.55 (all μg/g).

Classification: (C. Herd, UAb): IIAB iron.

Specimens: Type specimen of 49.2 g at UAb. Main mass with Mark Lyon.

Data from:
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021
Mass (g):48000
Class:Iron, IIAB
Shock stage:low
Weathering grade:low
Classifier:C. Herd, UAb
Type spec mass (g):49.2
Type spec location:UAb
Main mass:Mark Lyon
Comments:Field number ML039; 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. 112, in preparation (2023)
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     This is 1 of 9042 approved meteorites from (Northwest Africa) (plus 1870 unapproved names)

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