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Northwest Africa 400
Basic information Name: Northwest Africa 400
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 400
Observed fall: No
Year found: 2000
Country: Morocco
Mass:help 26.4 g
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  H5
Recommended:  H5    [explanation]

This is 1 of 11567 approved meteorites (plus 23 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)
Comments: Approved 7 May 2019
Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2000
Mass (g):26.4
Pieces:1
Class:H5
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):18.8±0.4
Classifier:A. Rubin, UCLA
Type spec mass (g):24.6
Type spec location:UCLA
Main mass:Verish
Comments:Has a distinctive, smooth exterior devoid of fusion-crust; interior has abundant metal-grains. When purchased, was labeled as "Oum Rokba (NWA 400)".; submitted by Verish
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)
Verish: Robert Verish, Meteorite-Recovery Lab, P.O. Box 463084, Escondido, CA 92046, United States; Website (private address; updated 27 May 2009)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Don Edwards   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
David L. Ribeca   
Gerald Armstrong      
John A. Shea   
Phil Schmitz      
Ryan Upchurch   
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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