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Northwest Africa 7573
Basic information Name: Northwest Africa 7573
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7573
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 45 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  CK3
Recommended:  CK3    [explanation]

This is 1 of 39 approved meteorites classified as CK3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CK chondrites, CK3 chondrites, and CV-CK clan chondrites
Comments: Approved 4 Jul 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7573 (NWA 7573)

(Northwest Africa)

Purchased: 2012

Classification: Carbonaceous chondrite (CK3)

Petrography: Clearly discernible chondrules and abundant irregularly shaped CAIs set in a greenish-grayish groundmass. Chondrules often contain clear glass. Magnetite is dispersed in the fine-grained matrix and metal is virtually absent. Opaque phases dominated by Cr-rich magnetite. FeS uncommon. CAIs less abundant that in CV3 chondrites and also a high matrix/chondrule ratio argues for CK.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2012
Mass (g):45
Pieces:2
Class:CK3
Shock stage:S1
Weathering grade:W2
Fayalite (mol%):15.7±13.8 (0.5-36, n=21)
Ferrosilite (mol%):1.4±0.3 ( 0.9-2.2, n=28)
Classifier:A. Greshake, MNB
Type spec mass (g):9.6
Type spec location:MNB
Main mass:Marcin Cimala
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. 102, MAPS 50, 1662, September 2015
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Woreczko Jan & Wadi   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6877 approved meteorites from (Northwest Africa) (plus 2037 unapproved names)

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