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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 526 approved meteorites 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:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Dirk Hohmann   
eraserhead   
Gerald Armstrong   
Space Jewels   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

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