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Northwest Africa 14148
Basic information Name: Northwest Africa 14148
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14148
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 366 g
Classification
  history:
Recommended:  CK4    [explanation]

This is 1 of 112 approved meteorites classified as CK4.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 31 Aug 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14148 (NWA 14148)

(Northwest Africa)

Purchased: 2020 Dec

Classification: Carbonaceous chondrite (CK4)

History: Purchased by Luc Labenne in December 2020 from a Moroccan dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Separated well-formed, equilibrated magnetite-bearing chondrules are set in a moderately coarse grained matrix containing Cr-magnetite (with ilmenite exsolution lamellae), troilite and relatively calcic plagioclase.

Geochemistry: Olivine (Fa33.0±0.3, range Fa32.7-33.4, N = 5), low-Ca pyroxene (Fs28.2±0.3Wo0.7±0.2, range Fs27.8-28.4Wo0.6-1.0, N = 3), pigeonite (Fs26.8Wo7.1), subcalcic augite (Fs19.3Wo23.5), augite (Fs15.2Wo36.4), plagioclase (An59.6-71.0Or0.8-0.3, N = 2), magnetite (Cr2O3 4.2-4.3 wt.%, N = 3).

Classification: Carbonaceous chondrite (CK4).

Specimens: 20 g including one polished thin section at UWB; remainder with Labenne.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020 Dec
Mass (g):366
Pieces:1
Class:CK4
Shock stage:S2
Weathering grade:low
Fayalite (mol%):33.0±0.3
Ferrosilite (mol%):28.2±0.3
Wollastonite (mol%):0.7±0.2
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.0
Type spec location:UWB
Main mass:Labenne
Comments:Work name LAB21-12; 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)
Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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