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Northwest Africa 13422
Basic information Name: Northwest Africa 13422
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13422
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 4.98 kg
Classification
  history:
Meteoritical Bulletin:  MB 109  (2020)  L5
Recommended:  L5    [explanation]

This is 1 of 8890 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 5 Sep 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13422 (NWA 13422)

(Northwest Africa)

Purchased: 2019 Oct

Classification: Ordinary chondrite (L5)

History: Purchased by Grant Harkness in October 2019 from a dealer in Zagora, Morocco.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Sparse chondrules are set in a recrystallized matrix containing stained metal, troilite, chromite and apatite.

Geochemistry: Olivine (Fa24.7±0.2, range Fa24.4-25.0, N = 5), low-Ca pyroxene (Fs20.9±0.6Wo1.3±0.2, range Fs20.0-21.9Wo1.0-1.6, N = 6).

Classification: Ordinary chondrite (L5).

Specimens: 26.44 g including one polished thin section at PSF; remainder in the Harkness Collection.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2019 Oct
Mass (g):4976
Pieces:1
Class:L5
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):24.7±0.2
Ferrosilite (mol%):20.9±0.6
Wollastonite (mol%):1.3±0.2
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):26.44
Type spec location:PSF
Main mass:Harkness Collection
Comments:Work name HC-17; submitted by A. Irving
Institutions
   and collections		 PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

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