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Northwest Africa 14378
Basic information Name: Northwest Africa 14378
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14378
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 1004 g
Recommended:  CO3    [explanation]

This is 1 of 616 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 15 Dec 2021
Writeup from MB 110:

Northwest Africa 14378 (NWA 14378)

(Northwest Africa)

Purchased: 2020

Classification: Carbonaceous chondrite (CO3)

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

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed small, glass-bearing chondrules (apparent diameter 210 ± 120 µm, N = 24), olivine crystal fragments and very fine grained CAI are set in a fine grained matrix (~20 vol.%, red-brown in thin section) containing altered metal, chromite and troilite.

Geochemistry: Olivine (Fa19.3±17.2, range Fa0.6-48.9, N = 11; Cr2O3 in ferroan olivine 0.04-0.52 wt.%, mean 0.32 wt.%, sd 0.09 wt.%, N = 15), low-Ca pyroxene (Fs1.2±0.1Wo0.9±0.1, range Fs1.1-1.3Wo0.8-1.0, N = 3), augite (Fs1.2±0.1Wo41.9±2.2, range Fs1.2-1.3Wo39.5-43.7, N = 3).

Classification: Carbonaceous chondrite (CO3).

Specimens: 24.5 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):1004
Shock stage:S2
Weathering grade:low
Fayalite (mol%):19.3±17.2
Ferrosilite (mol%):1.2±0.1
Wollastonite (mol%):0.9±0.1
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):24.5
Type spec location:UWB
Main mass:N. Gessler
Comments:Work name NG-BI; 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 Meteoritical Bulletin, no. 110, in preparation (2021)
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     This is 1 of 8674 approved meteorites from (Northwest Africa) (plus 1882 unapproved names)

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