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Northwest Africa 6919
Basic information Name: Northwest Africa 6919
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6919
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 95 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 508 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 6919 (NWA 6919)

Northwest Africa

Purchased: Apr 2011

Classification: HED achondrite (Eucrite)

Petrography: Relatively fine-grained, monomict breccia composed of clasts of basaltic eucrite, consisting of exsolved pigeonite, calcic plagioclase, silica polymorph and accessory ilmenite and zircon. Exsolved pigeonite contains abundant clinopyroxene exsolution lamellae (some kinked).

Geochemistry: Orthopyroxene Fs60.6-61.6Wo2.2-1.9, FeO/MnO=30-33, clinopyroxene lamellae Fs25.7-26.7Wo44.3-43.0, FeO/MnO=29-32.

Data from:
  MB100
  Table 1
  Line 1539:
Place of purchase:Erfoud
Date:P Apr 2011
Mass (g):95
Pieces:1
Class:Eucrite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):60.6-61.6; 25.7-26.7
Wollastonite (mol%):2.2-1.9; 44.3-43.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:UWS
Main mass:A. Hmani
Comments:A1/5; 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)
Hmani: A. Hmani Moroccan Imports, 13 rue Jules Hardouin Mansart, 92600 Asnières, France (private address)
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 7820 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

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