header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 18 Sep 2021
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Northwest Africa 4291
Basic information Name: Northwest Africa 4291
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4291
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 22.9 g
Classification
  history:
Meteoritical Bulletin:  MB 94  (2008)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 513 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 4 May 2008
Data from:
  MB94
  Table 2
  Line 13:
State/Prov/County:Denver
Date:Sep-2005
Mass (g):23
Pieces:1
Class:Eucrite
Ferrosilite (mol%):21.4, 53.6
Wollastonite (mol%):44.2, 2.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):4.6
Type spec location:UWS
Main mass:AHupe
Comments:FeO/MnO in px = 32.0
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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

Direct link to this page