Meteoritical Bulletin: Entry for Northwest Africa 475

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 15 Apr 2024
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Northwest Africa 475

Basic information

Name: Northwest Africa 475
This is an OFFICIAL meteorite name.
Abbreviation: NWA 475
Observed fall: No
Year found: 1999
Country: Morocco
Mass: 111.7 g

Classification
history:

NHM Catalogue:	5th Edition	(2000)	H4
Meteoritical Bulletin:	MB 86	(2002)	H4
MetBase:	v. 7.1	(2006)	H4
Recommended:			H4 [explanation]

This is 1 of 6493 approved meteorites (plus 2 unapproved names) classified as H4. [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Data from:
  MB86
  Table 6
  Line 21:

Origin or pseudonym:	Er Rachidia 006
Date:	1999?
Latitude:	32°02.6'N
Longitude:	4°08.2'W
Mass (g):	111.7
Pieces:	1
Class:	H4
Shock stage:	S2
Weathering grade:	W3
Fayalite (mol%):	18.6
Ferrosilite (mol%):	16.5
Classifier:	S. V. Afanasiev (Vernad)
Type spec mass (g):	22
Type spec location:	Vernad
Main mass:	S. V. Afanasiev

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. 86, MAPS 37, A157-A184 (2002)

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

Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Don Edwards

Geography:

Morocco

Coordinates:
Catalogue of Meteorites:	(32° 3'N, 4° 8'W)
Recommended::	(32° 2' 36"N, 4° 8' 12"W)

Note: the NHM and MetBase coordinates are 0.8 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)

Proximity search:

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Synonyms

Er Rachidia 006 (From MetBase)

Revision
history:

This lists important revisions made to data for this record.

Direct link to this page