Meteoritical Bulletin: Entry for Northwest Africa 6743

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Northwest Africa 6743

Basic information

Name: Northwest Africa 6743
This is an OFFICIAL meteorite name.
Abbreviation: NWA 6743
Observed fall: No
Year found: 2008
Country: Morocco
Mass: 60.4 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	CV3
Recommended:			CV3 [explanation]

This is 1 of 624 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

help

Writeup from MB 105:

Northwest Africa 6743 (NWA 6743)

Morocco

Purchased: 2008 Apr

Classification: Carbonaceous chondrite (CV3)

History: The stone was purchased in Agadir in April 2008.

Physical characteristics: One dark brown stone of 60.4 g. Saw cut shows brown matrix, chondrules and red-brown weathering areas.

Petrography: (R. Bartoschewitz, Bart) Microscopic examination of a thin section shows dark fine groundmass with mineral fragments, chondrules (PO, RP; PP; GO) up to 1 mm (avg. 0.6 mm), and CAIs. Chondrule/matrix ratio ~0.9.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine, Fa_25.2±20.9(n=13); pyroxene, Fs_1.4±0.7Wo_1.0±0.2(n=7); feldspar, An₇₆Or_0.9(n=1). O-isotopes (R. Greenwood and I. Franchi, OU): δ¹⁷O = -3.86, δ¹⁸O = -0.14 (permil). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10^-9 m³/kg) = 4.27.

Classification: Carbonaceous chondrite (CV3)

Specimens: 12.1 g on deposit at Kiel, main mass AKnöfel, and Bart 6.9 g.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Agadir
Date:	P 2008 Apr
Mass (g):	60.4
Pieces:	2
Class:	CV3
Fayalite (mol%):	25.2±20.9 (n=13)
Ferrosilite (mol%):	1.4±0.7 (n=7)
Wollastonite (mol%):	1.0±0.2
Magnetic suscept.:	4.27
Classifier:	R. Bartoschewitz
Type spec mass (g):	12.1
Type spec location:	Kiel
Main mass:	Knöfel
Finder:	anonymous
Comments:	Submitted by R. Bartoschewitz

Plots:

O isotopes:

Institutions
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)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full

Find references in NASA ADS:
Find references in Google Scholar:

Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Mirko Graul

Geography:

Morocco

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 2012 approved meteorites from Morocco (plus 35 unapproved names) (plus 1 impact crater)

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