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Northwest Africa 14143
Basic information Name: Northwest Africa 14143
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14143
Observed fall: No
Year found: 2018
Country: Morocco
Mass:help 7.44 kg
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  L5
Recommended:  L5    [explanation]

This is 1 of 8891 approved meteorites (plus 5 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 1 Aug 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14143 (NWA 14143)

Morocco

Find: 2018 Sep

Classification: Ordinary chondrite (L5)

History: Found in September 2018 near Tan Tan Plage, Morocco, and purchased by John Higgins in September 2020 from a dealer in Ouarzazate, Morocco.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Monomict breccia containing clasts up to 1.5 cm in size. Both the lithic clasts and interclast material consist of sparse chondrules within a recrystallized matrix containing altered kamacite, taenite, sodic plagioclase, merrillite, troilite and rare chlorapatite. Some veinlets of secondary calcite are present.

Geochemistry: Olivine (Fa25.4±0.2, range Fa25.1-25.6, N = 7), low-Ca pyroxene (Fs21.4±0.2Wo1.7±0.2, range Fs21.2-21.6Wo1.4-1.9, N = 4), augite (Fs8.5±0.8Wo44.9±1.2, range Fs7.9-9.0Wo45.7-44.0, N = 2).

Classification: Ordinary chondrite (L5 breccia).

Specimens: 111 g including one polished thin section at UWB; remainder with Mr. J. Higgins.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Ouarzazate
Date:2018 Sep
Mass (g):7437
Pieces:many
Class:L5
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):25.4±0.2
Ferrosilite (mol%):21.4±0.2
Wollastonite (mol%):1.7±0.2
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):111
Type spec location:UWB
Main mass:J. Higgins
Comments:Work name JH21-2; 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
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
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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