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Northwest Africa 14917
Basic information Name: Northwest Africa 14917
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14917
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 950 g
Recommended:  Diogenite-pm    [explanation]

This is 1 of 52 approved meteorites classified as Diogenite-pm.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 20 Jun 2022
Writeup from MB 111:

Northwest Africa 14917 (NWA 14917)

(Northwest Africa)

Purchased: 2021 Sep

Classification: HED achondrite (Diogenite, polymict)

History: Purchased by Juan Avil├ęs Poblador in September 2021 from an Algerian dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia dominated by lithic clasts of diogenitic composition and related debris with <10 vol.% eucrite material. Accessory phases include kamacite (relatively abundant, both fresh and altered), ilmenite, Ti-chromite and troilite.

Geochemistry: Diogenitic orthopyroxene (Fs22.5-25.4, FeO/MnO = 32, N = 2; Fs30.9-33.4, FeO/MnO = 29-31, N = 4), eucrite low-Ca pyroxene (Fs41.2Wo3.0, FeO/MnO = 22), augite (Fs13.7-17.2Wo44.1-43.2, FeO/MnO = 20-24, N = 3), plagioclase (An88.8-92.0Or0.5-0.3, N = 3).

Classification: Diogenite (polymict breccia).

Specimens: 50.7 g including two polished thin sections at UWB; remainder with Mr. J. Poblador.

Data from:
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021 Sep
Mass (g):950
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):22.5-33.4; 41.2; 13.7-17.2
Wollastonite (mol%):1.5-3.0; 3.0; 43.2-44.1
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):50.7
Type spec location:UWB
Main mass:J. Poblador
Comments:Work name JAP21-4; 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. 111, in preparation (2022)
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     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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