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Northwest Africa 13448
Basic information Name: Northwest Africa 13448
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13448
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 114.7 g
Classification
  history:
Recommended:  LL3    [explanation]

This is 1 of 345 approved meteorites classified as LL3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 10 Oct 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13448 (NWA 13448)

(Northwest Africa)

Purchased: 2017 Dec

Classification: Ordinary chondrite (LL3)

History: Purchased by Mbark Arjdal from a meteorite dealer in Algeria in December 2017.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed unequilibrated chondrules (apparent diameter 970±730 µm, N = 24) are set in a recrystallized matrix containing altered kamacite, taenite and troilite.

Geochemistry: Olivine (Fa29.3±13.6, range Fa3.2-41.5, N = 8; Cr2O3 in ferroan examples 0.04-0.09 wt.%, mean 0.06±0.02 wt.%, N = 7), low-Ca pyroxene (Fs11.0±7.4Wo1.6±2.0, range Fs1.6-22.3Wo0.2-4.7, N = 5), augite (Fs9.3±0.1Wo40.9±1.4, range Fs9.2-9.4Wo39.9-41.9, N = 2).

Classification: Ordinary chondrite (LL3).

Specimens: 22.0 g including one polished thin section at UWB; remainder with Mr. M. Arjdal.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2017 Dec
Mass (g):114.7
Pieces:1
Class:LL3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):29.3±13.6
Ferrosilite (mol%):11.0±7.4
Wollastonite (mol%):1.6±2.0
Magnetic suscept.:3.95
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):22.0
Type spec location:UWB
Main mass:M. Arjdal
Comments:Work name Arj B152; 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)
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 7385 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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