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Northwest Africa 13866
Basic information Name: Northwest Africa 13866
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13866
Observed fall: No
Year found: 2020
Country: Morocco
Mass:help 6.06 kg
Classification
  history:
Recommended:  L6    [explanation]

This is 1 of 11582 approved meteorites (plus 10 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 28 Mar 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13866 (NWA 13866)

Morocco

Purchased: 2020 Feb

Classification: Ordinary chondrite (L6)

History: Found by Ahmed Bouchama near Dakhla, Morocco, in January 2020 and purchased by John Higgins in February 2020.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Largely recrystallized with rare chondrule remnants. Accessory phases are sodic plagioclase, troilite, low-Ti chromite, kamacite, taenite and merrillite.

Geochemistry: Olivine (Fa25.0±0.3, range Fa24.6-25.4, N = 6), low-Ca pyroxene (Fs20.7±0.2Wo1.7±0.1, range Fs20.5-20.9Wo1.6-1.8, N = 4), augite (Fs8.4±0.4Wo44.2±0.2, range Fs8.1-8.8Wo43.9-44.3, N = 3).

Classification: Ordinary chondrite (L6).

Specimens: 30 g including one polished thin section at UWB; remainder with Mr. J. Higgins.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020 Feb
Mass (g):6064
Pieces:1
Class:L6
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):25.0±0.3
Ferrosilite (mol%):20.7±0.2
Wollastonite (mol%):1.7±0.1
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):30
Type spec location:UWB
Main mass:J. Higgins
Finder:A. Bouchama
Comments:Work name JH20-7; 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. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1680 approved meteorites from Morocco (plus 25 unapproved names) (plus 1 impact crater)

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