MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 3 Jun 2023
Search for: Search type: Search limits: Display: Publication:
Text help
Starts with
Sounds like
Falls  Non-NWAs
What's new
  in the last:
Include past classifications in search
Limit to approved meteorite names
Search text:  
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
Recommended:  LL3    [explanation]

This is 1 of 452 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
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:
  Table 0
  Line 0:
Place of purchase:Guelmim
Date:P 2021 Jul
Mass (g):73
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
   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)
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
Find references in NASA ADS:
Find references in Google Scholar:

     This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

Direct link to this page