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Northwest Africa 11053
Basic information Name: Northwest Africa 11053
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11053
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 1044 g
Meteoritical Bulletin:  MB 106  (2018)  Pallasite
Recommended:  Pallasite    [explanation]

This is 1 of 74 approved meteorites classified as Pallasite.   [show all]
Search for other: Metal-rich meteorites, Pallasites
Comments: Approved 3 Mar 2017
Writeup from MB 106:

Northwest Africa 11053 (NWA 11053)

(Northwest Africa)

Purchased: 2016 Nov

Classification: Pallasite

History: Purchased by Darryl Pitt in November 2016 from a dealer in Mauritania.

Petrography: (A. Irving and S. Kuehner, UWS) Composed predominantly of large grains of olivine (up to 1 cm) and heavily altered metal (Cr-bearing kamacite, present as remnant grains) with accessory schreibersite and Cr-bearing troilite. Terrestrial alteration products of primary metal are heterogeneous iron hydroxides with minor amounts of indeterminate K- and Ca-bearing phases.

Geochemistry: Olivine Fa12.9-13.3, FeO/MnO=36-37 (N = 3).

Classification: Pallasite.

Specimens: 21.9 g including a polished endcut at UWB; remainder with DPitt.

Data from:
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2016 Nov
Mass (g):1044.4
Shock stage:low
Weathering grade:high
Fayalite (mol%):12.9-13.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.9
Type spec location:UWB
Main mass:DPitt
Comments:MVCH 222; submitted by A. Irving
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
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 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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