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Northwest Africa 4992
Basic information Name: Northwest Africa 4992
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4992
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 170 g
Classification
  history:
Meteoritical Bulletin:  MB 93  (2008)  H4
Recommended:  H4    [explanation]

This is 1 of 6484 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 6 Mar 2008
Data from:
  MB93
  Table 2
  Line 168:
Place of purchase:Morocco
Date:2005
Mass (g):170
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W2-3
Fayalite (mol%):13.7
Ferrosilite (mol%):5.2-16.9
Classifier:A. Greshake, MNB
Type spec mass (g):31.6
Type spec location:MNB
Main mass:Stehlik
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Stehlik: Harald Stehlik, 1220 Wien, Austria (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 93, MAPS 43, 571-632 (2008)
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names)
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Revision
  history:
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