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Northwest Africa 14926
Basic information Name: Northwest Africa 14926
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14926
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 480 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  L4
Recommended:  L4    [explanation]

This is 1 of 2062 approved meteorites (plus 5 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 9 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14926 (NWA 14926)

(Northwest Africa)

Purchased: 2021 Oct

Classification: Ordinary chondrite (L4)

History: Purchased by Jason Whitcomb in October 2021 from an Algerian dealer.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed chondrules containing devitrified glass are set in a relatively coarse-grained matrix containing fresh kamacite, subcalcic augite, troilite and chromite, but no plagioclase. Olivine in chondrules is equilibrated but low-Ca pyroxene is unequilibrated. A 3 mm fine-grained igneous clast containing acicular pyroxene phenocrysts and devitrified glassy mesostasis is present in the studied thin section.

Geochemistry: Olivine (Fa24.1±0.2, range Fa22.9-25.0, N = 8), low-Ca pyroxene (Fs17.2±6.5Wo2.4±2.8, range Fs5.6-20.4Wo0.4-7.3, N = 5), subcalcic augite (Fs11.4Wo34.0).

Classification: Ordinary chondrite (L4).

Specimens: 20.5 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021 Oct
Mass (g):480
Pieces:1
Class:L4
Shock stage:S2
Weathering grade:W0
Fayalite (mol%):24.1±0.2
Ferrosilite (mol%):17.2±6.5
Wollastonite (mol%):2.4±2.8
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):20.5
Type spec location:PSF
Main mass:J. Whitcomb
Comments:Work name JW-121; 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 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. ?
Find references in NASA ADS:
Find references in Google Scholar:
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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