Meteoritical Bulletin: Entry for Northwest Africa 473

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Northwest Africa 473

Basic information

Name: Northwest Africa 473
This is an OFFICIAL meteorite name.
Abbreviation: NWA 473
Observed fall: No
Year found: 2000
Country: Morocco
Mass: 45.8 g

Classification
history:

NHM Catalogue:	5th Edition	(2000)	L4
Meteoritical Bulletin:	MB 85	(2001)	L4
MetBase:	v. 7.1	(2006)	L4
Recommended:			L4 [explanation]

This is 1 of 2062 approved meteorites (plus 5 unapproved names) classified as L4. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Data from:
  MB85
  Table 4
  Line 126:

Origin or pseudonym:	Er Rachidia 004
Date:	P Apr 2000
Latitude:	31°57.6'N
Longitude:	4°07.7'W
Mass (g):	45.8
Pieces:	1
Class:	L4
Shock stage:	S3
Weathering grade:	W2
Fayalite (mol%):	23.4
Ferrosilite (mol%):	21.6
Classifier:	S. V. Afanasiev (Vernad)
Type spec mass (g):	10.9
Main mass:	S. V. Afanasiev
Comments:	bought in April 2000 by S. V. Afanasiev from nomads who possibly found it in 1999 in Morroco;

Institutions
and collections

Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 85, MAPS 36, A293-A322 (2001)

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Geography:

Morocco

Coordinates:
Catalogue of Meteorites:	(31° 58'N, 4° 8'W)
Recommended::	(31° 57' 36"N, 4° 7' 42"W)

Note: the NHM and MetBase coordinates are 0.9 km apart

Statistics:
This is 1 of 62 approved meteorites from Meknès-Tafilalet, Morocco
This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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Synonyms

Er Rachidia 004 (From MetBase)

Revision
history:

This lists important revisions made to data for this record.

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