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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:help 2.34 kg
Classification
  history:
Recommended:  Ureilite    [explanation]

This is 1 of 594 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 13 Nov 2021
Writeuphelp
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 Fa19.9-20.3, N = 4; rims Fa1.6-5.2, N = 4), pigeonite (Fs17.5-17.6Wo5.2-5.4, 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, 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:
CreditPhotos
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 8024 approved meteorites from (Northwest Africa) (plus 1951 unapproved names)

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