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Northwest Africa 6497
Basic information Name: Northwest Africa 6497
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6497
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 44.6 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 408 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 24 Oct 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 6497 (NWA 6497)

(Northwest Africa)

Purchased: 2005 Sep

Classification: HED achondrite (Eucrite, polymict)

Petrography: Breccia composed of lithic and mineral clasts from various basaltic, eucritic lithologies. Exsolved pigeonite consisting of low-Ca pyroxene (FeO/MnO = 30) and high-Ca pyroxene (FeO/MnO = 28) plus calcic plagioclase with accessory silica (some as large grains), Ti-rich chromite, Ti-poor chromite, and troilite.

Data from:
  MB100
  Table 1
  Line 1397:
Place of purchase:eBay
Date:P 2005 Sep
Mass (g):44.6
Pieces:1
Class:Eucrite-pmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):57.7; 24.2
Wollastonite (mol%):1.9: 43.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):10.3
Type spec location:UWS
Main mass:JUtas
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)
JUtas: Jason Utas, United States (private address; updated 8 Jun 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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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