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Northwest Africa 14561
Basic information Name: Northwest Africa 14561
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14561
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 7.5 g
Recommended:  Eucrite-unbr    [explanation]

This is 1 of 119 approved meteorites classified as Eucrite-unbr.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 22 Dec 2021
Writeup from MB 110:

Northwest Africa 14561 (NWA 14561)

(Northwest Africa)

Purchased: 2021 Jul

Classification: HED achondrite (Eucrite, unbrecciated)

History: Purchased by Ziyao Wang in July 2021 from a dealer in Agadir, Morocco.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Relatively coarse grained, unbrecciated assemblage (mean grainsize ~0.8 mm) composed predominantly of equant grains of exsolved pigeonite and anorthite together with accessory silica polymorph, Ti-free V-bearing chromite, troilite, altered kamacite and taenite.

Geochemistry: Low-Ca pyroxene hosts (Fs41.3-44.2Wo3.7-6.6, FeO/MnO = 24-28, N = 5), augite exsolution lamellae (Fs20.0-22.3Wo39.6-41.6, FeO/MnO = 24-26, N = 4), anorthite (An94.5-95.0Or0.1, N = 3).

Classification: Eucrite (unbrecciated, coarse grained).

Specimens: 2.2 g in the form of a polished slice at UWB; remainder with WangZ.

Data from:
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2021 Jul
Mass (g):7.48
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):41.3-44.2; 20.0-22.3
Wollastonite (mol%):3.7-6.6; 39.6-41.6
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):2.2
Type spec location:UWB
Main mass:WangZ
Comments:Work name WZY-62; 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)
WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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