Meteoritical Bulletin: Entry for Northwest Africa 7264

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Northwest Africa 7264

Basic information

Name: Northwest Africa 7264
This is an OFFICIAL meteorite name.
Abbreviation: NWA 7264
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass: 201 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	LL3
Recommended:			LL3 [explanation]

This is 1 of 487 approved meteorites classified as LL3. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 22 Oct 2015

Writeup

Writeup from MB 104:

Northwest Africa 7264 (NWA 7264)

Northwest Africa

Purchased: 2012 Mar

Classification: Ordinary chondrite (LL3)

History: Purchased by in Temara, Morocco by Adam Aaronson in March 2012.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, fairly closely packed, relatively large chondrules (apparent diameter 2.0±1.6 mm, some with opaque rims) in a finer grained, reddish-brown matrix.

Geochemistry: Olivine (Fa_12.7-38.9; Cr₂O₃ in ferroan olivines = 0.04-0.08 wt.%, mean 0.06±0.02 wt.%, N =7), orthopyroxene (Fs_5.2-11.4Wo_0.1-0.9, N = 3), subcalcic augite (Fs_7.8Wo_38.0).

Classification: Ordinary chondrite (LL3).

Specimens: 20 g including one polished thin section at UWB; the remainder is held by Aaronson.

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Temara
Date:	P 2012 Mar
Mass (g):	201
Pieces:	1
Class:	LL3
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	12.7-38.9
Ferrosilite (mol%):	5.2-11.4
Wollastonite (mol%):	0.1-0.9
Magnetic suscept.:	3.80
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	20
Type spec location:	UWB
Main mass:	A. Aaronson
Comments:	M1362; 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. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full

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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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