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Northwest Africa 6021
Basic information Name: Northwest Africa 6021
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6021
Observed fall: No
Year found: 2009
Country: (Northwest Africa)
Mass:help 301 g
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 522 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 6 Oct 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 6021 (NWA 6021)

(Northwest Africa)

Purchased: 2009

Classification: Carbonaceous chondrite (CO3)

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

Physical characteristics: Brownish individual partly covered with fusion crust.

Petrography: The meteorite is composed of abundant small chondrules, CAIs, and mineral fragments set into a fine-grained brownish matrix. Chondrules are dominantly of porphyritic type I and type II and have an apparent mean diameter of about 0.2 mm. Some sulfides and FeNi metal grains are present in matrix and chondrules. Some chondrules show orange staining due to terrestrial alteration.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2009
Mass (g):301
Pieces:1
Class:CO3
Shock stage:S2
Weathering grade:moderate
Fayalite (mol%):26.9±20.2 (1.3-59.7, n=11)
Ferrosilite (mol%):2.4±1.6 (0.9-5.7, n=15)
Wollastonite (mol%):1.0±0.4 (0.7-2.4, n=15)
Classifier:A. Greshake, MNB
Type spec mass (g):20.4
Type spec location:MNB
Main mass:Stefan Ralew
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
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)
André Knöfel         
Andreas Grünemeyer   
Gregor H.   
John Lutzon   
Mirko Graul      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

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