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Northwest Africa 6918
Basic information Name: Northwest Africa 6918
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6918
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass:help 153.6 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 443 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 29 Nov 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 6918 (NWA 6918)

Northwest Africa

Purchased: 2010 Oct

Classification: HED achondrite (Eucrite)

Petrography: Clasts of ophitic-textured eucrite within a matrix of related debris (mostly exsolved pigeonite and calcic plagioclase).

Geochemistry: Orthopyroxene host (Fs62.7-63.0Wo1.6-1.2, FeO/MnO=33-34), augite exsolution lamellae (Fs27.3-27.5Wo42.1-42.2, FeO/MnO=33-37).

Data from:
  MB100
  Table 1
  Line 1538:
Place of purchase:Munich
Date:P 2010 Oct
Mass (g):153.6
Pieces:1
Class:Eucrite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):62.7-63.0; 27.3-27.5
Wollastonite (mol%):1.6-1.2; 42.1-42.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.5
Type spec location:UWS
Main mass:M. Jost
Comments:SJS 11006; 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)
SJS: Space Jewels Switzerland, 2555 Brügg, Switzerland (private address; updated 3 Jan 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

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