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Northwest Africa 4906
Basic information Name: Northwest Africa 4906
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4906
Observed fall: No
Year found: 2007
Country: (Northwest Africa)
Mass:help 268 g
Classification
  history:
Recommended:  CV3    [explanation]

This is 1 of 510 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 20 Oct 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 4906 (NWA 4906)

(Northwest Africa)

Purchased: 2007

Classification: Carbonaceous chondrite (CV3)

History: The meteorite was purchased from a local meteorite dealer in Erfoud, Morocco.

Physical characteristics: Greyish fragment without fusion crust.

Petrography: The meteorite displays a dark-grayish interior and is composed of chondrules (mean diameter about 0.9 mm; up to 2 mm sized), up to 5 mm sized CAIs, and olivine amoeboids all set into a dark fine-grained matrix. Type II chondrules are absent. Some chondrules show reddish staining due to terrestrial weathering.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2007
Mass (g):268
Pieces:1
Class:CV3
Shock stage:S2
Weathering grade:moderate
Fayalite (mol%):6.3±9.2 (0.2-49.3, n=27)
Ferrosilite (mol%):1.2±0.7 (0.5-2.2, n=10)
Wollastonite (mol%):1.3±1.3 (0.6-4.5, n=10)
Magnetic suscept.:4.2
Classifier:A. Greshake, MNB
Type spec mass (g):22.2
Type spec location:MNB
Main mass:Carsten Giessler
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
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)
Mirko Graul   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7005 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

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