Meteoritical Bulletin: Entry for Northwest Africa 14458

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Northwest Africa 14458

Basic information

Name: Northwest Africa 14458
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14458
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass: 2.34 kg

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	Ureilite
Recommended:			Ureilite [explanation]

This is 1 of 660 approved meteorites classified as Ureilite. [show all]
Search for other: Achondrites, Ureilites

Comments:

Approved 13 Nov 2021

Writeup

Writeup from MB 110:

Northwest Africa 14458 (NWA 14458)

(Northwest Africa)

Purchased: 2018 Dec

Classification: Ureilite

History: Purchased by Ziyao Wang in December 2018 from a dealer in Agadir, Morocco.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Protogranular texture (mean grainsize ~1 mm). Composed predominantly of olivine (~80 vol.%) and pigeonite (~20 vol.%) with accessory graphite, kamacite, taenite and troilite. Olivine grains have reduced, more magnesian rims associated with stained, fine grained Fe metal.

Geochemistry: Olivine (cores Fa_19.9-20.3, N = 4; rims Fa_1.6-5.2, N = 4), pigeonite (Fs_17.5-17.6Wo_5.2-5.4, N = 5).

Classification: Ureilite.

Specimens: 44.2 g including one polished thin section at UWB; remainder with WangZ.

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Agadir
Date:	P 2018 Dec
Mass (g):	2336
Pieces:	1
Class:	Ureilite
Shock stage:	low
Weathering grade:	low
Fayalite (mol%):	19.9-20.3; 1.6-5.2
Ferrosilite (mol%):	17.5-17.6
Wollastonite (mol%):	5.2-5.4
Classifier:	A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):	44.2
Type spec location:	UWB
Main mass:	WangZ
Comments:	Work name WZY-54; 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
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

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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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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