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Northwest Africa 6746
Basic information Name: Northwest Africa 6746
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6746
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 2 kg
Meteoritical Bulletin:  MB 105  (2016)  CV3
Recommended:  CV3    [explanation]

This is 1 of 612 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 15 Jun 2016
Writeup from MB 105:

Northwest Africa 6746 (NWA 6746)

(Northwest Africa)

Purchased: 2008

Classification: Carbonaceous chondrite (CV3)

History: The stone was purchased in Morocco in 2008.

Physical characteristics: One dark brown stone of 2000 g. Saw cut shows very dark matrix, chondrules and CAIs.

Petrography: (R. Bartoschewitz, Bart) fine-grained dark matrix with chondrules (PO, GO) up to 2 mm (average 0.7 mm), chondrule fragments, CAIs (average 3 mm) and isolated mineral grains. Opaque minerals are awaruite and pentlandite.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine, Fa3.6±2.1 (n=15); pyroxene, Fs1.6±0.9Wo1.7±1.0 (n=9). O-isotopes (R. Greenwood and I. Franchi, OU): δ17O = -3.90 (permil); δ18O = 0.84 (?). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.60.

Classification: Carbonaceous chondrite (CV3)

Specimens: 20.0 g on deposit at Kiel, main mass anonymous, Bart 8.8 g.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2008
Mass (g):2000
Fayalite (mol%):3.6±2.1 (n=15)
Ferrosilite (mol%):1.6±0.9 (n=9)
Wollastonite (mol%):1.7±1.0
Magnetic suscept.:4.60
Classifier:R. Bartoschewitz
Type spec mass (g):20
Type spec location:Kiel
Main mass:anonymous
Comments:working name RH36-30; submitted by R. Bartoschewitz
Plots: O isotopes:  
   and collections
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     This is 1 of 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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