Meteoritical Bulletin: Entry for Northwest Africa 6293

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Northwest Africa 6293

Basic information

Name: Northwest Africa 6293
This is an OFFICIAL meteorite name.
Abbreviation: NWA 6293
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass: 575 g

Classification
history:

Meteoritical Bulletin:	MB 100	(2012)	Diogenite
Recommended:			Diogenite [explanation]

This is 1 of 511 approved meteorites classified as Diogenite. [show all]
Search for other: Achondrites, Diogenites, and HED achondrites

Comments:

Approved 19 Sep 2011

Writeup

Writeup from MB 100:

Northwest Africa 6293 (NWA 6293)

(Northwest Africa)

Purchased: 2010 June 17

Classification: HED achondrite (Diogenite)

Petrography: (A. Irving and S. Kuehner, UWS): Complex polymict breccia composed mostly of diogenitic clasts and debris (yellow-brown in thin section), with sparse material derived from cumulate eucrites.

Geochemistry: Orthopyroxene (Fs_32.2-34.2Wo_3.5-2.7; Fs_60.9Wo_3.5; FeO/MnO = 30.9-31.6), magnesian clinopyroxene (Fs_12.8-12.9Wo_44.3-44.6; FeO/MnO = 25.4-25.9), more ferroan clinopyroxene (Fs_30.0Wo_41.8; FeO/MnO = 33.6), sparse shocked calcic plagioclase, chromite and troilite.

Data from:
  MB100
  Table 1
  Line 1332:

Origin or pseudonym:	Northwest Africa
Place of purchase:	Bruegg, Switzerland
Date:	P 2010 June 17
Mass (g):	575
Pieces:	1
Class:	Diogenite
Ferrosilite (mol%):	32.2-34.2
Wollastonite (mol%):	3.5-2.7
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	20
Type spec location:	UWS
Main mass:	M. Jost
Comments:	SJS 10015; 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)
SJS: Space Jewels Switzerland, 2555 Brügg, Switzerland (private address; updated 3 Jan 2010)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Space Jewels

Geography:

Coordinates:

Unknown.

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

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