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Northwest Africa 4637
Basic information Name: Northwest Africa 4637
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4637
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass:help 36.1 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  L3
Recommended:  L3    [explanation]

This is 1 of 709 approved meteorites classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 29 May 2012
Writeuphelp
Writeup from MB 100:

Northwest Africa 4637 (NWA 4637)

(Northwest Africa)

Purchased: 2006

Classification: Ordinary chondrite (L3)

History: The meteorite was found by an anonymous person in northwest Africa and bought by H. Strufe at a meteorite fair in Ensisheim, France

Physical characteristics: One brownish fragment of 36.1 g without fusion crust.

Petrography: Unbrecciated chondrite with abundant clearly discernable chondrules of various textural types. Olivine and pyroxene in chondrules and matrix are compositionally unequilibrated.

Geochemistry: Olivine, Fa0.2-25; pyroxene, Fs2-21.7.

Classification: Ordinary chondrite (L3); S2, W2/3.

Specimens: 7.2 g plus one polished thin section are on deposit at MNB.

Data from:
  MB100
  Table 1
  Line 1196:
Place of purchase:Ensisheim, France
Date:P 2006
Mass (g):36.1
Pieces:1
Class:L3
Shock stage:S2
Weathering grade:W2/3
Fayalite (mol%):0.2-25
Ferrosilite (mol%):2-21.7
Classifier:Ansgar Greshake, MNB
Type spec mass (g):7.2
Type spec location:MNB
Main mass:H. Strufe
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum f├╝r Naturkunde, Invalidenstra├če 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7385 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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