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Northwest Africa 4771
Basic information Name: Northwest Africa 4771
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4771
Observed fall: No
Year found: 2007
Country: Morocco
Mass:help 225 g
Classification
  history:
Meteoritical Bulletin:  MB 95  (2009)  LL7
Recommended:  LL7    [explanation]

This is 1 of 60 approved meteorites classified as LL7.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 12 Feb 2009
Data from:
  MB95
  Table 2
  Line 51:
Place of purchase:Hamada du Guir, Morocco
Date:May-07
Mass (g):224.62
Pieces:1
Class:LL7
Shock stage:S3
Weathering grade:W0/1
Fayalite (mol%):32.5±0.3
Ferrosilite (mol%):26.5±0.4
Magnetic suscept.:3.68
Classifier:M. Bourot-Denise, MNHNP
Type spec mass (g):22.9
Type spec location:MNHNP
Main mass:PThomas
Comments:Ca-pyroxene = Fs12.4, Wo40.9; Plagioclase = An10.8; metal is rare. Chondritic texture is absent.
Institutions
   and collections
MNHNP: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address)
PThomas: Philippe Thomas, Meteoritica, La Chave, 07690 St André en Vivarais, France (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 95, MAPS 44, 429-462 (2009)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1390 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)

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