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Northwest Africa 6472
Basic information Name: Northwest Africa 6472
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6472
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass:help 71 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  LL3.2
Recommended:  LL3.2    [explanation]

This is 1 of 20 approved meteorites classified as LL3.2.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 6 Sep 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 6472 (NWA 6472)

Northwest Africa

Purchased: 2010 Oct

Classification: Ordinary chondrite (LL3.2)

Petrography: (A. Irving and S. Kuehner, UWS) Large well-formed chondrules in a more stained matrix. Minerals are olivine, orthopyroxene, subcalcic augite, augite, sodic plagioclase, chromite, altered kamacite and troilite.

Geochemistry: Olivine (Fa0.7-37.4, Cr2O3 in ferroan olivine = 0.11-0.47 wt.%, mean 0.23, s.d. 0.11, N = 8), orthopyroxene (Fs3.8-19.9Wo0.2-2.6), subcalcic augite (Fs8.9Wo28.2), augite (Fs9.5Wo38.4).

Classification: Ordinary chondrite (LL3.2). Subtype estimated to be 3.2 based on Cr2O3 range in ferroan olivine. Estimation of subtype based on histograms (Fig. 4) in Grossman and Brearley (2005).

Bibliography:
  • Grossman J.N. and Brearley A.J. (2005) The onset of metamorphism in ordinary and carbonaceous chondrites. Meteorit. Planet. Sci. 40, 87-122. (link)
Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2010 Oct
Mass (g):71
Pieces:1
Class:LL3.2
Shock stage:S2
Weathering grade:W1/2
Fayalite (mol%):0.7-37.4, n=10
Ferrosilite (mol%):3.8-19.9
Wollastonite (mol%):0.2-2.6
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):14.5
Type spec location:UWB
Main mass:P. Marmet
Comments:PMMC-1011; 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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
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)
Alpha Tauri   
Mirko Graul                                                
Solar Anamnesis   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

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