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 Meteoritical Bulletin, no. 110, in preparation (2021)

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 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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