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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:help 6 kg
Meteoritical Bulletin:  MB 102  (2013)  CV3
MB 107  (2018)  L3
Recommended:  L3    [explanation]

This is 1 of 748 approved meteorites (plus 1 unapproved name) 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 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., Fs5.1Wo0.25, Fs21.5Wo6.4, Fs8.1Wo29.6, and Fs1.6Wo43.2. Olivine shows wide range Fa0.4-24.8.

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 Fa0.4; predominantly Fa24.5-24.8, Cr2O3 0.03-0.05 wt.%, mean 0.04±0.01 wt.%, N = 4), orthopyroxene (Fs5.1Wo0.25), pigeonite (Fs21.5Wo6.4), subcalcic augite (Fs8.1Wo29.6), diopside (Fs1.6Wo43.2).

Classification: Ordinary chondrite (L3).

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

Data from:
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2010 Nov
Mass (g):6000
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
   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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
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     This is 1 of 8025 approved meteorites from (Northwest Africa) (plus 1951 unapproved names)

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