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Northwest Africa 13453
Basic information Name: Northwest Africa 13453
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13453
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 106 g
Classification
  history:
Recommended:  CK5    [explanation]

This is 1 of 181 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
Writeuphelp
Writeup from MB 109:

Northwest Africa 13453 (NWA 13453)

(Northwest Africa)

Purchased: 2019

Classification: Carbonaceous chondrite (CK5)

History: 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 stained Cr-magnetite (some with exsolved chromite and ilmenite lamellae) and calcic plagioclase. No low-Ca pyroxene was found despite a careful search.

Geochemistry: Olivine (Fa31.9±0.2, range Fa31.7-32.1, N = 5), augite (Fs9.2±0.5Wo47.9±0.8, range Fs8.8-9.7Wo47.3-48.8, N = 3), plagioclase (An46.1Or2.5; An87.5Or0.3; N = 2), magnetite (Cr2O3 = 4.9 wt.%, 5.0 wt.%, N = 2).

Classification: Carbonaceous chondrite (CK5).

Specimens: 20.8 g including one polished thin section at UWB; remainder with Mr. N. Gessler.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2019
Mass (g):106
Pieces:1
Class:CK5
Shock stage:S2
Weathering grade:low
Fayalite (mol%):31.9±0.2
Ferrosilite (mol%):9.2±0.5
Wollastonite (mol%):47.9±0.8
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.8
Type spec location:UWB
Main mass:N. Gessler
Comments:Work name M; submitted by A. Irving
Institutions
   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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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