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Northwest Africa 14118
Basic information Name: Northwest Africa 14118
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14118
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 732 g
Recommended:  H4    [explanation]

This is 1 of 6407 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 24 Jul 2021
Writeup from MB 110:

Northwest Africa 14118 (NWA 14118)

(Northwest Africa)

Purchased: 2019 Dec

Classification: Ordinary chondrite (H4)

History: Purchased by Jason Whitcomb in December 2019 from a dealer in Greeley, Colorado, who had obtained the material from a Moroccan source.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed, relatively small equilibrated chondrules are present in a relatively coarse grained, recrystallized matrix containing altered metal, chromite, troilite and chlorapatite.

Geochemistry: Olivine (Fa19.0±0.1, range Fa18.8-19.2, N = 6), low-Ca pyroxene (Fs16.6±0.1Wo1.1±0.2, range Fs16.4-16.7Wo0.6-1.3, N = 5).

Classification: Ordinary chondrite (H4).

Specimens: 22.8 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb.

Data from:
  Table 0
  Line 0:
Place of purchase:Greeley, CO
Date:P 2019 Dec
Mass (g):732
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):19.0±0.1
Ferrosilite (mol%):16.6±0.1
Wollastonite (mol%):1.1±0.3
Classifier:A. Irving, UWS, and J. Boesenberg, Brown U.
Type spec mass (g):22.8
Type spec location:PSF
Main mass:J. Whitcomb
Comments:Work name JW-6; submitted by A. Irving
   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: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
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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     This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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