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Northwest Africa 031
Basic information Name: Northwest Africa 031
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 031
Observed fall: No
Year found: 1999
Country: Morocco
Mass:help 730 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  H5
Meteoritical Bulletin:  MB 84  (2000)  H5
MetBase:  v. 7.1  (2006)  H5
Recommended:  H5    [explanation]

This is 1 of 9637 approved meteorites (plus 16 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Data from:
  MB84
  Table 9
  Line 31:
Place of purchase:Zagora
Latitude:30°20'N
Longitude:5°50'W
Mass (g):730
Pieces:1
Class:H5
Shock stage:S2
Weathering grade:W4
Fayalite (mol%):16.8
Ferrosilite (mol%):15.8
Classifier:S. Afanasiev and M. Ivanova (Vernad)
Type spec location:Vernad
Comments:NWA 027 and 031 are probably paired; Purchased by S. Afanasiev, V. Kalachev, and D. Kachalin during a 1999 meteorite expedition in the Moroccan Sahara
Institutions
   and collections
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
Catalogs:
References: Published in Meteoritical Bulletin, no. 84, MAPS 35, A199-A225 (2000)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Don Edwards   
Matteo Chinellato   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Robert Zdancewicz   
Geography:

Morocco
Coordinates:
     Catalogue of Meteorites:   (30° 20'N, 5° 50'W)
     Recommended::   (30° 20'N, 5° 50'W)

Statistics:
     This is 1 of 73 approved meteorites from Souss-Massa-Draâ, Morocco (plus 4 unapproved names)
     This is 1 of 1386 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)
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