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Northwest Africa 4628
Basic information Name: Northwest Africa 4628
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4628
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass:help 45.7 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  CO3
Recommended:  CO3    [explanation]

This is 1 of 614 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 15 May 2012
Writeuphelp
Writeup from MB 100:

Northwest Africa 4628 (NWA 4628)

(Northwest Africa)

Purchased: 2006

Classification: Carbonaceous chondrite (CO3)

History: The meteorite was found by an anonymous finder in northwest Africa and bought by the main mass holder at a mineral fair in Munich, Germany.

Physical characteristics: One dark brown fragment without fusion crust weighing 45.7 g.

Petrography: The meteorite exhibits characteristic texture of abundant small chondrules, CAIs, and mineral fragments set in a fine-grained dark brownish matrix.

Geochemistry: Olivine, Fa0.3-50.4; pyroxene, Fs0.9-4.5.

Classification: Carbonaceous chondrite (CO3); S2, W2.

Specimens: 9.5 g plus one polished thin section are on deposit at MNB.

Data from:
  MB100
  Table 1
  Line 1188:
Place of purchase:Munchen
Date:P 2006
Mass (g):45.7
Pieces:1
Class:CO3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.3-50.4
Ferrosilite (mol%):0.9-4.5
Classifier:A. Greshake, MNB
Type spec mass (g):9.5
Type spec location:MNB
Main mass:Marc Jost
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:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Dirk Hohmann Photo added 19 Apr 2022
eraserhead Photo added 19 Apr 2022
Gerald Armstrong Photo added 19 Apr 2022
Space Jewels   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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