Meteoritical Bulletin: Entry for Northwest Africa 14565

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Northwest Africa 14565

Basic information

Name: Northwest Africa 14565
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14565
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass: 500 g

Classification
history:

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

This is 1 of 522 approved meteorites classified as Diogenite. [show all]
Search for other: Achondrites, Diogenites, and HED achondrites

Comments:

Approved 25 May 2022

Writeup

Writeup from MB 111:

Northwest Africa 14565 (NWA 14565)

(Northwest Africa)

Purchased: 2021 Aug

Classification: HED achondrite (Diogenite)

History: Purchased by Shun-Chung Yang in August 2021 from a dealer in Tindouf, Algeria.

Petrography: (A. Irving, UWS and J. Boesenberg, Brown U.) Coarse grained assemblage (in part cataclastic) of predominantly orthopyroxene (~80 vol.%) and olivine (~17 vol.%) with accessory chromite, stained Fe metal, rare augite and rare troilite. Grainsizes are as follows: orthopyroxene (up to several millimeters), olivine (up to 0.75 mm) and chromite (up to 0.5 mm).

Geochemistry: Orthopyroxene (Fs_22.2-23.8Wo_1.0-1.9, FeO/MnO = 23-26, N = 20), olivine (Fa_27.3-28.0, FeO/MnO = 41-44, N = 5).

Classification: Diogenite (olivine-orthopyroxenitic).

Specimens: 23.3 g including one polished thin section at UWB; remainder with Mr. S.-C. Yang.

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	Tindouf
Date:	P 2021 Aug
Mass (g):	500
Pieces:	1
Class:	Diogenite
Shock stage:	low
Weathering grade:	low
Fayalite (mol%):	27.3-28.0
Ferrosilite (mol%):	22.2-23.8
Wollastonite (mol%):	1.0-1.9
Classifier:	A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):	23.3
Type spec location:	UWB
Main mass:	S.-C. Yang
Comments:	Work name SCY-50; 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)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024)

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 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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