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Northwest Africa 14272
Basic information Name: Northwest Africa 14272
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14272
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 5.16 kg
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 263 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 6 Oct 2021
Writeup from MB 110:

Northwest Africa 14272 (NWA 14272)

Northwest Africa

Purchased: 2018 Dec

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by Albert Jambon in December 2018 from a dealer in Nouakchott, Mauritania.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Monomict breccia composed of granulitic-textured eucrite clasts within a fine grained recrystallized matrix. Minerals are exsolved pigeonite, calcic plagioclase, silica polymorph, ilmenite, troilite, Ti-chromite, zircon and baddeleyite.

Geochemistry: Orthopyroxene hosts (Fs60.2-61.3Wo2.1-2.8, FeO/MnO = 29-33, N = 5), augite exsolution lamellae (Fs28.0-30.7Wo38.3-39.7, FeO/MnO = 31-32, N = 5), plagioclase (An83.3-88.6Or0.9-0.6, N = 3).

Classification: Eucrite (monomict breccia, granulitic).

Specimens: 28.4 g including one polished thin section at UWB; remainder with Mr. A. Jambon.

Data from:
  Table 0
  Line 0:
Place of purchase:Nouakchott
Date:P 2018 Dec
Mass (g):5160
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):60.2-61.3; 28.0-30.7
Wollastonite (mol%):2.1-2.8; 38.3-42.0
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):28.4
Type spec location:UWB
Main mass:A. Jambon
Comments:Work name AJ21-03; 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)
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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