Meteoritical Bulletin: Entry for Northwest Africa 8354

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Northwest Africa 8354

Basic information

Name: Northwest Africa 8354
This is an OFFICIAL meteorite name.
Abbreviation: NWA 8354
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass: 57 g

Classification
history:

Meteoritical Bulletin:	MB 103	(2014)	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 6 Jun 2014

Writeup

Writeup from MB 103:

Northwest Africa 8354 (NWA 8354)

(Northwest Africa)

Purchased: 2013

Classification: HED achondrite (Diogenite, polymict)

History: Purchased by Stefan Ralew from a Moroccan dealer in 2013.

Petrography: (A. Irving and S. Kuehner, UWS) Fragmental breccia composed predominantly of clasts of a feldspathic diogenite lithology accompanied by mineral debris derived from several eucritic lithologies. Feldspathic diogenite clasts are composed of orthopyroxene with ~5 vol.% calcic plagioclase, silica polymorph, chromite, Ti-chromite, troilite and Ni-free metal.

Geochemistry: Diogenitic orthopyroxene (Fs_30.8Wo_5.4, FeO/MnO = 28), orthopyroxene (Fs_48.3Wo_3.2, FeO/MnO = 34), pigeonite (Fs_43.1Wo_8.8, FeO/MnO = 32), augite (Fs_22.4Wo_40.4, FeO/MnO = 28).

Classification: Diogenite, feldspathic, polymict breccia.

Specimens: 11.4 g including one polished thin section at UWB. The remaining material is held by Ralew.

Data from:
  MB103
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2013
Mass (g):	57
Pieces:	1
Class:	Diogenite-pm
Shock stage:	low
Weathering grade:	low
Ferrosilite (mol%):	30.8; 48.3; 43.1; 22.4
Wollastonite (mol%):	5.4; 3.2; 8.8; 40.4
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	11.4
Type spec location:	UWB
Main mass:	S. Ralew
Comments:	RA14-1; 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)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full

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Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Sergey Vasiliev

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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