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Northwest Africa 6340
Basic information Name: Northwest Africa 6340
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6340
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass:help 164 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 455 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 19 Sep 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 6340 (NWA 6340)

(Northwest Africa)

Purchased: 2010 Jun

Classification: HED achondrite (Diogenite)

Petrography: (A. Irving and S. Kuehner, UWS): Very fresh monomict breccia. No eucritic debris is present.

Geochemistry: Composed predominantly of angular diogenitic orthopyroxene grains (Fs23.2-23.5Wo2.3-2.5; FeO/MnO = 31.9-33.1) with minor olivine (Fa29.8-30.2; FeO/MnO = 50.8-54.7), chromite, troilite, and rare polymineralic diogenite clasts.

Data from:
  MB100
  Table 1
  Line 1351:
Origin or pseudonym:Northwest Africa
Place of purchase:Erfoud
Date:P 2010 Jun
Mass (g):164
Pieces:1
Class:Diogenite
Weathering grade:very low
Fayalite (mol%):29.8-30.2
Ferrosilite (mol%):23.2-23.5
Wollastonite (mol%):2.3-2.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.9
Type spec location:UWS
Main mass:B. Booz
Comments:BB-25; 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:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Beat Booz         
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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