header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 17 Feb 2020
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 6953
Basic information Name: Northwest Africa 6953
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6953
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 4.16 kg
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 193 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 23 Apr 2012
Writeuphelp
Writeup from MB 100:

Northwest Africa 6953 (NWA 6953)

(Northwest Africa)

Purchased: Sept 2011

Classification: Mesosiderite

Petrography: The primary metal in this specimen (originally ~30-40 vol.%) has been almost entirely altered by terrestrial weathering, with minor amounts of remnant kamacite and taenite. The other constituent minerals are orthopyroxene, very calcic plagioclase, and troilite.

Geochemistry: Orthopyroxene (Fs24.9Wo2.5, Fs31.8Wo3.3, Fe/Mn=30), olivine (Fa37.6-37.9, Fe/Mn=46-47).

Data from:
  MB100
  Table 1
  Line 1554:
Place of purchase:Morocco
Date:P Sept 2011
Mass (g):4160
Pieces:many
Class:Mesosiderite
Shock stage:low
Weathering grade:W3
Fayalite (mol%):37.6-37.9
Ferrosilite (mol%):24.9; 31.8
Wollastonite (mol%):2.5; 3.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):118
Type spec location:UWS
Main mass:J. Higgins
Comments:Submitted by A. Irving
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. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Aeroliths Collection Theodossiou         
John A. Shea   
Michael S. Scherman   
Mike Markowitz   
Nuno Chaves         
Rene Schmit   
The Wilcox Collection of Meteorites   
Wang Ziyao   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7181 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

Direct link to this page