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Northwest Africa 13513
Basic information Name: Northwest Africa 13513
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13513
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 21 g
Recommended:  Ureilite    [explanation]

This is 1 of 605 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 16 Jan 2021
Writeup from MB 110:

Northwest Africa 13513 (NWA 13513)

(Northwest Africa)

Purchased: 2020 Jun

Classification: Ureilite

History: Purchased by Sun-Chung Yang in June 2020 from a Moroccan dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) The specimen exhibits triple grain junction texture and is composed predominantly of olivine with subordinate low-Ca pyroxene and augite plus accessory graphite, phosphorus-bearing FeNi metal, Cr-troilite and minor secondary calcite. Olivine grains have reduced magnesian rims with fine blebby Fe metal associated with minor Cr-troilite.

Geochemistry: Olivine (cores Fa11.3±0.2, N = 3; rims 4.1±0.9, range Fa3.5-5.1, N = 3), low-Ca pyroxene (Fs10.2±0.2Wo4.9±0.0, N = 2), augite (Fs6.3±0.0Wo36.5±0.2, N = 2).

Classification: Ureilite.

Specimens: 4.6 g in the form of a polished endcut at UWB; remainder with Mr. S.-C. Yang.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020 Jun
Mass (g):21
Shock stage:low
Weathering grade:low
Fayalite (mol%):11.3±0.2
Ferrosilite (mol%):10.2±0.1; 6.3±0.0
Wollastonite (mol%):4.9±0.0; 36.5±0.2
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):4.6
Type spec location:UWB
Main mass:S.-C. Yang
Comments:Work name SCY-3; 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)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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