Meteoritical Bulletin: Entry for Northwest Africa 14141

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Northwest Africa 14141

Basic information

Name: Northwest Africa 14141
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14141
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass: 525 g

Classification
history:

Recommended:

EL4 [explanation]

This is 1 of 19 approved meteorites classified as EL4. [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites

Comments:

Approved 31 Aug 2021

Writeup

Writeup from MB 110:

Northwest Africa 14141 (NWA 14141)

(Northwest Africa)

Purchased: 2021 Feb

Classification: Enstatite chondrite (EL4)

History: Purchased by Ziyao Wang in February 2021 from a dealer in Laayoune, Morocco.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Very fresh specimen composed of equilibrated, fibrous pyroxene-rich chondrules and partial chondrules set in a fine grained, relatively metal-rich matrix (~20 vol.%, opaque in thin section) containing accessory Cr-troilite.

Geochemistry: Enstatite (Fs_0.4±0.0Wo_2.0±1.3, range Fs_0.4Wo_0.9-3.4, N = 3), diopside (Fs_0.9±0.2Wo_47.2±0.3, range Fs_0.7-1.0Wo_447.0-47.4, N = 2), kamacite (Ni 7.5±0.0 wt.%, Si 0.6±0.0 wt.%, N = 2), troilite (Cr 2.7-2.8 wt.%, Ti 0.3±0.0 wt.%, N = 2).

Classification: Enstatite chondrite (EL4).

Specimens: 30.3 g including one polished thin section at UWB; remainder with WangZ.

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Laayoune
Date:	P 2021 Feb
Mass (g):	525
Pieces:	1
Class:	EL4
Shock stage:	S2
Weathering grade:	W0
Ferrosilite (mol%):	0.4±0.0; 0.9±0.2
Wollastonite (mol%):	2.0±1.3; 47.2±0.3
Classifier:	A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):	30.3
Type spec location:	UWB
Main mass:	WangZ
Comments:	Work names WZY-25 and MN 53; submitted by A. Irving

Institutions
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)
WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021)

Catalogs:

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

Find references in NASA ADS:
Find references in Google Scholar:

Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Ziyao Wang

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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