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Northwest Africa 14175
Basic information Name: Northwest Africa 14175
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14175
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 4.27 kg
Recommended:  L3    [explanation]

This is 1 of 783 approved meteorites (plus 1 unapproved name) classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 20 Dec 2021
Writeup from MB 110:

Northwest Africa 14175 (NWA 14175)

(Northwest Africa)

Purchased: 2021 Jan

Classification: Ordinary chondrite (L3)

History: Purchased by Dr. David Gregory in January and September 2021 from a dealer in Zagora, Morocco.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Very closely packed, well-formed glass-bearing chondrules (apparent diameter 860 ± 570 µm, N = 25) are set in a very sparse matrix containing stained kamacite, taenite, troilite and chromite.

Geochemistry: Olivine (Fa22.4±11.1, range Fa4.0-32.4, N = 7; Cr2O3 in ferroan olivine 0.01-0.11 wt.%, mean 0.04±0.02 wt.%, N = 30), low-Ca pyroxene (Fs17.8±9.4Wo2.8±2.4, range Fs3.2-29.2Wo0.3-5.4, N = 5), augite (Fs11.7Wo35.8; Fs6.0Wo42.6; N = 2). Magnetic susceptibiliy log χ (× 10-9 m3/kg) = 4.74.

Classification: Ordinary chondrite (L3).

Specimens: 20.8 g including one polished thin section at UWB; remainder with DGregory.

Data from:
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2021 Jan
Mass (g):4273
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):22.4±11.1
Ferrosilite (mol%):17.8±9.4
Wollastonite (mol%):2.8±2.4
Magnetic suscept.:4.74
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.8
Type spec location:UWB
Main mass:DGregory
Comments:Work name RC144.3; 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)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
DGregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address)
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 8402 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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