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Northwest Africa 13383
Basic information Name: Northwest Africa 13383
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13383
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 866 g
Recommended:  Ureilite    [explanation]

This is 1 of 605 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 10 Oct 2020
Writeup from MB 109:

Northwest Africa 13383 (NWA 13383)

(Northwest Africa)

Purchased: 2019 Feb

Classification: Ureilite

History: Purchased by Blaine Reed in February 2019 from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Protogranular texture of non-equant olivine and pigeonite grains showing preferred dimensional orientation. Olivine has reduced, more magnesian rims associated with very fine grained Fe metal. No carbon phases were observed in the studied thin section.

Geochemistry: Olivine (cores Fa20.3-24.5, N = 13; rims Fa9.6-18.8, N = 6; Cr2O3 in all olivine = 0.6-0.8 wt.%), pigeonite (Fs11.8-19.5Wo10.2-12.4, N = 9; Fs10.9Wo15.2; Fs13.5Wo6.4).

Classification: Ureilite.

Specimens: 20.7 g including one polished thin section at PSF; remainder with Mr. B. Reed.

Data from:
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2019 Feb
Mass (g):866.4
Shock stage:low
Weathering grade:low
Fayalite (mol%):20.3-24.5; 9.6-18.8
Ferrosilite (mol%):11.8-19.5
Wollastonite (mol%):10.2-12.4
Classifier:A. Irving, UWA and J. Boesenberg, BrownU
Type spec mass (g):20.7
Type spec location:PSF
Main mass:B. Reed
Comments:Work name BR111; submitted by A. Irving
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address)
UWA: University of Western Australia, 35 Hackett Drive, Crawley, Western Australia 6009, Australia (institutional address; updated 29 May 2012)
BrownU: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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