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Northwest Africa 4397
Basic information Name: Northwest Africa 4397
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4397
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass:help 34 g
Classification
  history:
Meteoritical Bulletin:  MB 92  (2007)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 355 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 24 Jul 2007
Writeuphelp
Writeup from MB 92:

Northwest Africa 4397

Northwest Africa

Find: 2006

Achondrite (eucrite, polymict)

History: The meteorite was recovered by an anonymous finder in northwest Africa and purchased by the main mass holder in Tagounite, Morocco.

Physical characteristics: A single stone of 34 g was recovered.

Petrography: (A. Greshake, MNB) The meteorite consists of coarse- and fine-grained basaltic and mineral clasts embedded in a fine-grained clastic matrix. Mineral fragments are mostly plagioclase and exsolved Ca-pyroxene. Minor phases include silica, ilmenite, and troilite.

Mineral compositions: Plagioclase (An68.1-92.7) and pyroxene (Fs36.7-58.8Wo8-28).

Classification: Achondrite (eucrite, polymict); minimum shock, moderate to extensive weathering.

Type specimens: A total of 6.8 g of sample plus one polished thin section are on deposit at MNB. Ralew holds the main mass.

Data from:
  MB92
  Table 2
  Line 67:
Place of purchase:Tagounite, Morocco
Date:2006
Mass (g):34
Pieces:1
Class:Euc
Type spec mass (g):6.8
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)
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Photos:
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Photos from the Encyclopedia of Meteorites:
SR Meteorites   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7820 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

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