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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
Classification
  history:
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 272 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 6 Oct 2021
Writeuphelp
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:
  MB110
  Table 0
  Line 0:
Place of purchase:Nouakchott
Date:P 2018 Dec
Mass (g):5160
Pieces:1
Class:Eucrite-mmict
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
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)
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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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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