Meteoritical Bulletin: Entry for Northwest Africa 7003

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Northwest Africa 7003

Basic information

Name: Northwest Africa 7003
This is an OFFICIAL meteorite name.
Abbreviation: NWA 7003
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass: 38.2 g

Classification
history:

Meteoritical Bulletin:	MB 100	(2012)	LL4-5
Recommended:			LL4-5 [explanation]

This is 1 of 15 approved meteorites classified as LL4-5. [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 11 Jun 2012

Writeup

Writeup from MB 100:

Northwest Africa 7003 (NWA 7003)

(Northwest Africa)

Purchased: 2011 Sep

Classification: Ordinary chondrite (LL4-5)

History: Purchased by Adam Aaronson in 2011 September in Temara, Morocco.

Petrography: Breccia consisting of clasts exhibiting varying degrees of recrystallization. Some clasts (less altered) have fairly well-formed, medium-sized chondrules, but other clasts have only sparse chondrules. Minerals are olivine, orthopyroxene, clinopyroxene, sodic plagioclase, chromite, troilite and altered kamacite.

Geochemistry: Olivine (Fa_26.7-28.0), orthopyroxene (Fs_25.3Wo_2.1), clinopyroxene (Fs_10.1-10.5Wo_43.8-43.6).

Classification: Ordinary chondrite (LL4-5).

Data from:
  MB100
  Table 1
  Line 1567:

Place of purchase:	Temara
Date:	P 2011 Sep
Mass (g):	38.2
Pieces:	1
Class:	LL4-5
Shock stage:	S2
Weathering grade:	W1/2
Fayalite (mol%):	26.7-28.0
Ferrosilite (mol%):	25.3
Wollastonite (mol%):	2.1
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	9.9
Type spec location:	UWS
Main mass:	A. Aaronson
Comments:	M1292; 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)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)

Catalogs:

References:

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

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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