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Northwest Africa 14663
Basic information Name: Northwest Africa 14663
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14663
Observed fall: No
Year found: 2021
Country: Niger
Mass:help 436 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  L3
Recommended:  L3    [explanation]

This is 1 of 848 approved meteorites (plus 2 unapproved names) classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 12 Feb 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14663 (NWA 14663)

Niger

Purchased: 2021 Mar

Classification: Ordinary chondrite (L3)

History: Found in Niger and purchased by Mbark Arjdal in March 2020 from a local dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Closely-packed, well-formed, unequilibrated glass-bearing chondrules (apparent diameter 1060±630 µm, N = 25) are set in a fine grained matrix containing stained kamacite, taenite and troilite.

Geochemistry: Olivine (Fa19.2±16.0, range Fa1.1-49.7, N = 9; Cr2O3 in ferroan olivine 0.04-0.34 wt.%, mean 0.13±0.10 wt.%, N = 8), low-Ca pyroxene (Fs9.8±7.8Wo1.6±1.6, range Fs2.7-20.8Wo0.3-3.6, N = 4), pigeonite (Fs34.0Wo7.5; Fs34.7Wo17.4; Fs24.6Wo19.5; N = 3), augite (Fs5.8Wo38.0). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.83.

Classification: Ordinary chondrite (L3).

Specimens: 30.8 g including one large area polished thin section at UWB; remainder with Mr. M. Arjdal.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Niger
Date:P 2021 Mar
Mass (g):436
Pieces:1
Class:L3
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):19.2±16.0
Ferrosilite (mol%):9.8±7.8
Wollastonite (mol%):1.6±1.6
Magnetic suscept.:4.83
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):30.8
Type spec location:UWB
Main mass:M. Arjdal
Comments:Work name Arj ZM 535; 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. 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:

Niger
Coordinates:Unknown.

Statistics:
     This is 1 of 119 approved meteorites from Niger (plus 4 unapproved names)
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Revision
  history:
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