Meteoritical Bulletin: Entry for Northwest Africa 6567

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Northwest Africa 6567

Basic information

Name: Northwest Africa 6567
This is an OFFICIAL meteorite name.
Abbreviation: NWA 6567
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass: 6 kg

Classification
history:

Meteoritical Bulletin:	MB 102	(2013)	CV3
	MB 107	(2018)	L3
Recommended:			L3 [explanation]

This is 1 of 848 approved meteorites (plus 2 unapproved names) classified as L3. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 6 Sep 2013
Revised 28 May 2018: Reclassified from CV3 to L3

Writeup

Writeup from MB 102:

Northwest Africa 6567 (NWA 6567)

(Northwest Africa)

Purchased: 2010 Nov

Classification: Carbonaceous chondrite (CV3)

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed chondrules (mostly granular with some PO) in a sparse black matrix. Some goethite veinlets formed by terrestrial weathering are present.

Geochemistry: Multiple pyroxenes identified by EMPA, e.g., Fs_5.1Wo_0.25, Fs_21.5Wo_6.4, Fs_8.1Wo_29.6, and Fs_1.6Wo_43.2.Olivine shows wide range Fa_0.4-24.8.

Writeup from MB 107:

Reclassification of Northwest Africa 6567 (NWA 6567)

History: Purchased in Temara, Morocco, by Adam Aaronson in November 2010.

Physical characteristics: A single unusually hard, dark brown stone (6000 g) lacking fusion crust.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, closely packed chondrules (mostly granular with some PO, apparent diameter 440±310 µm, N = 14) are set in a sparse matrix (black in thin section). Some goethite veinlets formed by terrestrial weathering are present.

Geochemistry: Olivine (core Fa_0.4; predominantly Fa_24.5-24.8, Cr₂O₃ 0.03-0.05 wt.%, mean 0.04±0.01 wt.%, N = 4), orthopyroxene (Fs_5.1Wo_0.25), pigeonite (Fs_21.5Wo_6.4), subcalcic augite (Fs_8.1Wo_29.6), diopside (Fs_1.6Wo_43.2).

Classification: Ordinary chondrite (L3).

Specimens: 23 g including one polished thin section at UWB; remainder with Aaronson.

Data from:
  MB102
  Table 0
  Line 0:

Place of purchase:	Temara
Date:	P 2010 Nov
Mass (g):	6000
Pieces:	1
Class:	CV3
Shock stage:	S2
Weathering grade:	W1/2
Fayalite (mol%):	0.4-24.8
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	23
Type spec location:	UWB
Main mass:	Aaronson
Comments:	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)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462

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Geography:

Coordinates:

Unknown.

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

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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