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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 12401 approved meteorites (plus 8 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 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:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1991 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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