Meteoritical Bulletin: Entry for Northwest Africa 14917

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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: 950 g

Classification
history:

Meteoritical Bulletin:	MB 111	(2023)	Diogenite-pm
Recommended:			Diogenite-pm [explanation]

This is 1 of 63 approved meteorites classified as Diogenite-pm. [show all]
Search for other: Achondrites, Diogenites, and HED achondrites

Comments:

Approved 20 Jun 2022

Writeup

Writeup from MB 111:

Northwest Africa 14917 (NWA 14917)

(Northwest Africa)

Purchased: 2021 Sep

Classification: HED achondrite (Diogenite, polymict)

History: Purchased by Juan Avilés 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 (Fs_22.5-25.4, FeO/MnO = 32, N = 2; Fs_30.9-33.4, FeO/MnO = 29-31, N = 4), eucrite low-Ca pyroxene (Fs_41.2Wo_3.0, FeO/MnO = 22), augite (Fs_13.7-17.2Wo_44.1-43.2, FeO/MnO = 20-24, N = 3), plagioclase (An_88.8-92.0Or_0.5-0.3, N = 3).

Classification: Diogenite (polymict breccia).

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

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	Algeria
Date:	P 2021 Sep
Mass (g):	950
Pieces:	1
Class:	Diogenite-pm
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

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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)

Catalogs:

References:

Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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