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Northwest Africa 14387
Basic information Name: Northwest Africa 14387
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14387
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 902 g
Recommended:  LL3    [explanation]

This is 1 of 452 approved meteorites classified as LL3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 26 Dec 2021
Writeup from MB 110:

Northwest Africa 14387 (NWA 14387)

(Northwest Africa)

Purchased: 2020

Classification: Ordinary chondrite (LL3)

History: Puchased by Nicholas Gessler in 2020 from a Moroccan dealer.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed unequilibrated chondrules (apparent diameter 800±270 µm, N = 25; one 2 mm) containing devitrified glass are set in a fine grained matrix containing stained metal, troilite and chromite. Olivine and pyroxene exhibit significant compositional zoning, and some shock darkening of mafic silicates is evident in thin section.

Geochemistry: Olivine (Fa24.8±6.0, range Fa10.4-32.7, Cr2O3 0.01-0.12 wt.%, mean 0.06±0.04 wt%, N = 13), low-Ca pyroxene (Fs18.0±11.5Wo1.4±1.5, range Fs6.7-33.3Wo0.3-3.6, N = 4). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.37.

Classification: Ordinary chondrite (LL3). LL group based on magnetic susceptibility combined interpreted in the light of weathering grade W1.

Specimens: 20.4 g plus one polished thin section at UWB; remainder with Mr. N. Gessler.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020
Mass (g):902
Shock stage:S4
Weathering grade:W1
Fayalite (mol%):24.8±6.0
Ferrosilite (mol%):18.0±11.5
Wollastonite (mol%):1.4±1.5
Magnetic suscept.:4.37
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):20.4
Type spec location:UWB
Main mass:N. Gessler
Comments:Work name NG-AV; submitted by A. Irving
   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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Gessler: Nicholas Gessler, 2010 Calgary Lane, Los Angeles, CA 90077, United States (private address; updated 7 Jul 2016)
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 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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