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Northwest Africa 6441
Basic information Name: Northwest Africa 6441
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6441
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass:help 28.3 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 515 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 10 Dec 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 6441 (NWA 6441)

(Northwest Africa)

Purchased: 2010

Classification: Ureilite

History: Purchased by F. Kuntz in December 2012 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Protogranular aggegate of olivine (with dark reduced rims), pigeonite and subcalcic augite.

Geochemistry: Olivine (core Fa21.3-21.4, rim Fa8.0-11.5), pigeonite (Fs17.9-18.2Wo5.4-5.5), subcalcic augite (Fs3.1-9.0Wo29.5-28.8).

Classification: Ureilite.

Specimens: Type specimen plus one polished thin section at PSF; main mass with Kuntz.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2010
Mass (g):28.3
Pieces:1
Class:Ureilite
Shock stage:low
Weathering grade:low
Fayalite (mol%):21.3-21.4
Ferrosilite (mol%):17.9-18.2; 3.1-9.0
Wollastonite (mol%):5.4-5.5; 29.5-28.8
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):5.8
Type spec location:PSF
Main mass:F. Kuntz
Comments:K 147; submitted by P. Sipiera
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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)
Michael Mulgrew   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7009 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

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