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Northwest Africa 15427
Basic information Name: Northwest Africa 15427
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15427
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 966 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  L6
Recommended:  L6    [explanation]

This is 1 of 12727 approved meteorites (plus 11 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 12 Nov 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15427 (NWA 15427)

(Northwest Africa)

Purchased: 2022

Classification: Ordinary chondrite (L6)

History: Purchased by Nicholas Gessler in 2022 from a Moroccan dealer.

Physical characteristics: A batch (total 966 g) of approximately 500 similar fragments coated by semi-glossy black fusion crust.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Sparse glass-free, equilibrated chondrules occur within a mostly recrystallized assemblage containing stained kamacite, taenite, troilite, chromite, augite and chlorapatite.

Geochemistry: Olivine (Fa25.1±0.4, range Fa24.4-25.5, N = 7), low-Ca pyroxene (Fs21.0±0.3Wo1.7±0.2, range Fs20.5-21.3Wo1.4-1.9, N = 6).

Classification: Ordinary chondrite (L6).

Specimens: 22.4 g plus one polished thin section at UWB; remainder with Mr. N. Gessler.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2022
Mass (g):966
Pieces:many
Class:L6
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):25.1±0.4
Ferrosilite (mol%):21.0±0.3
Wollastonite (mol%):1.7±0.2
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):22.4
Type spec location:UWB
Main mass:N. Gessler
Comments:Work name NG-FS; 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)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
Gessler: Nicholas Gessler, 2010 Calgary Lane, Los Angeles, CA 90077, United States (private address; updated 7 Jul 2016)
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 Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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