Meteoritical Bulletin: Entry for Northwest Africa 4140

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Northwest Africa 4140

Basic information

Name: Northwest Africa 4140
This is an OFFICIAL meteorite name.
Abbreviation: NWA 4140
Observed fall: No
Year found: unknown
Country: (Northwest Africa)
Mass: 139.1 g

Classification
history:

Meteoritical Bulletin:	MB 90	(2006)	L6
Recommended:			L6 [explanation]

This is 1 of 12331 approved meteorites (plus 8 unapproved names) classified as L6. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 3 Feb 2005

Data from:
  MB90
  Table 2
  Line 324:

Place of purchase:	Erfoud, Morocco
Date:	Unknown
Mass (g):	139.1
Pieces:	1
Class:	L6
Shock stage:	S4
Weathering grade:	W1
Fayalite (mol%):	24.2
Ferrosilite (mol%):	20.1
Classifier:	A. Greshake and M. Kurz
Type spec mass (g):	23.6
Type spec location:	MNB

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Kurz: M. Kurz, Schillerstrasse 7, D-34626 Neukirchen, Germany (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 90, MAPS 41, 1383-1418 (2006)

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Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Austromet

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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