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Northwest Africa 7322
Basic information Name: Northwest Africa 7322
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7322
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 109 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  H4
Recommended:  H4    [explanation]

This is 1 of 6400 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 28 Jan 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7322 (NWA 7322)

(Northwest Africa)

Purchased: 2012 Apr

Classification: Ordinary chondrite (H4)

History: Purchased by Stefan Ralew in April 2012 from a dealer in Erfoud, Morocco.

Petrography: Well-formed, small chondrules and abundant altered metal in the matrix. Olivine, orthopyroxene, clinopyroxene, sodic plagioclase, chromite, altered kamacite and troilite.

Geochemistry: Olivine (Fa18.9-19.2), orthopyroxene (Fs16.7-17.3Wo1.5-1.2), clinopyroxene (Fs6.3-6.5Wo44.8-44.2)

Classification: Ordinary chondrite (H4).

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2012 Apr
Mass (g):109
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):18.9-19.2
Ferrosilite (mol%):16.7-17.3
Wollastonite (mol%):1.5-1.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:UWB
Main mass:S. Ralew
Comments:RA12-21; 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)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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