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Northwest Africa 6437
Basic information Name: Northwest Africa 6437
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6437
Observed fall: No
Year found: 2009
Country: Morocco
Mass:help 305 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  CO3
Recommended:  CO3    [explanation]

This is 1 of 510 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 19 Jul 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 6437 (NWA 6437)

Morocco

Found: 2009

Classification: Carbonaceous chondrite (CO3)

Petrography: Desert ablated stone with little fusion crust. Limonitic staining present. Typical CO chondrule size with small AOAs and CAIs. Olivine Fa mean, 21.4±18 (n=23), Fe/Mn=128 to 144, Cr2O3, mean = 31.4±15.4 wt % (n=23). Analyses limited to chondrule olivine only. Metal Ni = 5.6 wt %. Subtype of 3.1 likely based on Cr2O3 content in olivine (Grossman and Brearley, 2005).

Bibliography:
  • Grossman J.N. and Brearley A.J. (2005) The onset of metamorphism in ordinary and carbonaceous chondrites. Meteorit. Planet. Sci. 40, 87-122. (link)
Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:2009
Mass (g):305
Pieces:2
Class:CO3
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):21.4±18, n=23
Ferrosilite (mol%):12.6±9.8, n=23
Wollastonite (mol%):0.4-1.8
Classifier:T. Bunch and J. Wittke, NAU
Type spec mass (g):25.65
Type spec location:PSF
Main mass:F. Kuntz
Comments:Submitted by Wittke
Institutions
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1370 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)

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