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Northwest Africa 14486
Basic information Name: Northwest Africa 14486
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14486
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 73 g
Classification
  history:
Recommended:  LL3    [explanation]

This is 1 of 377 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 23 Nov 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14486 (NWA 14486)

(Northwest Africa)

Purchased: 2021 Jul

Classification: Ordinary chondrite (LL3)

History: Purchased by Shun-Chung Yang in July 2021 from a dealer in Guelmim, Morocco.

Petrography: (A. Irving, UWS and J. Boesenberg, Brown U.) Fairly closely packed, well-formed chondrules (apparent diameter 1010 ± 470 µm, N = 25) containing devitrified glass are set in a fine grained matrix containing altered kamacite, taenite and chromite.

Geochemistry: Olivine (Fa31.3±27.8, range Fa6.3-91.8, N = 7; Cr2O3 in ferroan olivine 0.01-0.25 wt.%, mean 0.07 wt.%, sd 0.10 wt.%, N = 5), low-Ca pyroxene (Fs12.1±7.9Wo1.8±1.2, range Fs1.8-20.1Wo0.6-3.2, N = 6), pigeonite (Fs19.4Wo6.8), diopside (Fs1.2Wo43.3). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.84.

Classification: Ordinary chondrite (LL3).

Specimens: 15.0 g including one polished thin section at UWB; remainder with Mr. S.-C. Yang.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Guelmim
Date:P 2021 Jul
Mass (g):73
Pieces:1
Class:LL3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):31.3±27.8
Ferrosilite (mol%):12.1±7.9
Wollastonite (mol%):1.8±1.2
Magnetic suscept.:3.84
Classifier:A. Irving, UWS, and J. Boesenberg, Brown U.
Type spec mass (g):15.0
Type spec location:UWB
Main mass:S.-C. Yang
Comments:Work name SCY-44; 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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 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 8037 approved meteorites from (Northwest Africa) (plus 1947 unapproved names)

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