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Northwest Africa 721
Basic information Name: Northwest Africa 721
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 721
Observed fall: No
Year found: 2001
Country: Morocco
Mass:help 194 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  CR2
Recommended:  CR2    [explanation]

This is 1 of 163 approved meteorites classified as CR2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites
Comments: Approved 30 Aug 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 721 (NWA 721)

Morocco

Purchased: 1 Jan 2001

Classification: Carbonaceous chondrite (CR2)

Petrography: Section contains porphyritic and barred olivine chondrules with an average size of 850 μm. There are large metal nodules to 950 μm and smaller metal grains decorating chondrule surfaces. There is minor sulfide.

Data from:
  MB100
  Table 1
  Line 1680:
Date:P 1 Jan 2001
Mass (g):194
Pieces:1
Class:CR2
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):2.1±1.3
Classifier:Ellen Harju and Alan Rubin
Type spec mass (g):20.3
Type spec location:UCLA
Main mass:David Gregory
Comments:Submitted by Ellen Harju and Alan Rubin
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Gregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1417 approved meteorites from Morocco (plus 15 unapproved names) (plus 1 impact crater)

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