Meteoritical Bulletin: Entry for Northwest Africa 7309

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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: 36.2 g

Classification
history:

Meteoritical Bulletin:	MB 102	(2013)	CM2
Recommended:			CM2 [explanation]

This is 1 of 620 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

Writeup

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 (Fa_0.5-43.9), orthopyroxene (Fs_1.2-1.3Wo_2.6-0.9), clinopyroxene (Fs_4.1Wo_39.6).

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:

Credit	Photos
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 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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