Meteoritical Bulletin: Entry for Northwest Africa 6503

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Northwest Africa 6503

Basic information

Name: Northwest Africa 6503
This is an OFFICIAL meteorite name.
Abbreviation: NWA 6503
Observed fall: No
Year found: 2009
Country: (Northwest Africa)
Mass: 20.1 g

Classification
history:

Meteoritical Bulletin:	MB 100	(2012)	LL6
Recommended:			LL6 [explanation]

This is 1 of 2892 approved meteorites (plus 2 unapproved names) classified as LL6. [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 19 Sep 2011

Writeup

Writeup from MB 100:

Northwest Africa 6503 (NWA 6503)

(Northwest Africa)

Purchased: 2009 Feb

Classification: Ordinary chondrite (LL6)

Petrography: Metamorphic texture with regions of different grain size and some recognizable relict recrystallized chondrules.

Geochemistry: Oxygen isotopes (R. Tanaka, Okayama U.): δ¹⁷O = 4.024, 3.945; δ¹⁸O = 5.340, 5.257; Δ¹⁷O = 1.210, 1.174 per mil

Data from:
  MB100
  Table 1
  Line 1400:

Place of purchase:	eBay
Date:	P 2009 Feb
Mass (g):	20.1
Pieces:	1
Class:	LL6
Shock stage:	S2
Weathering grade:	W1/2
Fayalite (mol%):	29.0±0.0
Ferrosilite (mol%):	23.8-24.2; 11.4-12.2
Wollastonite (mol%):	4.0-3.7; 41.4-40.0
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	5.3
Type spec location:	UWS
Main mass:	JUtas
Comments:	Submitted by A. Irving

Plots:

O isotopes:

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)
JUtas: Jason Utas, United States (private address; updated 8 Jun 2010)

Catalogs:

References:

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

Find references in NASA ADS:
Find references in Google Scholar:

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

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