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Northwest Africa 13449
Basic information Name: Northwest Africa 13449
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13449
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 842 g
Recommended:  CK5    [explanation]

This is 1 of 199 approved meteorites classified as CK5.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 1 Nov 2020
Writeup from MB 109:

Northwest Africa 13449 (NWA 13449)

(Northwest Africa)

Purchased: 2019

Classification: Carbonaceous chondrite (CK5)

History: A batch of 6 identical-appearing stones was purchased by Nicholas Gessler in 2019 from a Moroccan dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Sparse separated, magnetite-bearing chondrules are set in a matrix containing Cr-magnetite and calcic plagioclase.

Geochemistry: Olivine (Fa33.3±0.3, range Fa33.0-33.5, N = 4), low-Ca pyroxene (Fs25.5±1.8Wo3.2±0.6, range Fs24.2-26.8Wo2.6-3.7, N = 2), augite (Fs11.2±1.0Wo48.8±1.1, range Fs10.5-11.9Wo48.0-49.5, N = 2), plagioclase (An35.0Or4.4; An81.5Or0.4; N = 2), magnetite (Cr2O3 = 4.6 wt.%, 4.7 wt.%, N = 2).

Classification: Carbonaceous chondrite (CK5).

Specimens: 20.4 g plus one polished thin section at UWB; remainder with Mr. N. Gessler.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2019
Mass (g):842
Shock stage:S2
Weathering grade:low
Fayalite (mol%):33.3±0.3
Ferrosilite (mol%):25.5±1.8
Wollastonite (mol%):3.2±0.8
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.4
Type spec location:UWB
Main mass:N. Gessler
Comments:Work name I; 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)
Gessler: Nicholas Gessler, 2010 Calgary Lane, Los Angeles, CA 90077, United States (private address; updated 7 Jul 2016)
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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