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Northwest Africa 7309
Basic information Name: Northwest Africa 7309
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7309
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 36.2 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  CM2
Recommended:  CM2    [explanation]

This is 1 of 532 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 6 Sep 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7309 (NWA 7309)

(Northwest Africa)

Purchased: 2012 Mar

Classification: Carbonaceous chondrite (CM2)

History: Purchased by Gary Fujihara in March 2012 from a dealer in Agadir, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Small chondrules, some mineral fragments and sparse, fine grained CAI in a very dark, slightly stained matrix containing cronstedtite-tochilinite and minor pentlandite.

Geochemistry: Olivine (Fa0.5-43.9), orthopyroxene (Fs1.2-1.3Wo2.6-0.9), clinopyroxene (Fs4.1Wo39.6).

Classification: Carbonaceous chondrite (CM2).

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2012 Mar
Mass (g):36.2
Pieces:1
Class:CM2
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):0.5-43.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):7.3
Type spec location:UWB
Main mass:G. Fujihara
Comments:GF12-4; 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)
Aeroliths Collection Theodossiou   
Gregor H.   
Public domain photographs:
Gary Fujihara      
Geography: 
Coordinates:Unknown.

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

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