Meteoritical Bulletin: Entry for Northwest Africa 6730

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Northwest Africa 6730

Basic information

Name: Northwest Africa 6730
This is an OFFICIAL meteorite name.
Abbreviation: NWA 6730
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass: 51 g

Classification
history:

Meteoritical Bulletin:	MB 100	(2012)	Eucrite
Recommended:			Eucrite [explanation]

This is 1 of 509 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 5 Nov 2011

Writeup

Writeup from MB 100:

Northwest Africa 6730 (NWA 6730)

Northwest Africa

Purchased: 2010 May

Classification: HED achondrite (Eucrite)

History: Two small stones were purchased in Tucson in May 2010.

Physical characteristics: (R. Bartoschewitz, Bart) two partially fusion crusted stones of totally 51.0 g. Magnetic susceptibility log χ=3.15 (χ in m³/kg × 10^-9).

Petrography: (R. Bartoschewitz, Bart) Monomict breccia of euhedral to subhedral pyroxene and plagioclase (<2 mm) in a finer grained matrix. Accessory minerals are ilmenite, kamacite, troilite, and silica.

Geochemistry: (R. Bartoschewitz, Bart, and P. Appel and B. Mader, Kiel) Ca-poor pyroxene Fs_61.8-63.8Wo_1.4-3.6, Ca-rich pyroxene Fs_29.1-60.1Wo_5.1-41.7, olivine Fa_75.1, feldspar An_77.1-91.3Or_0.3-2.5.Kamacite Ni <0.1, Co=0.9, ilmenite, troilite, and silica (wt%).

Classification: Cumulate eucrite (very fresh).

Specimens: Type specimen, 10.4 g, Kiel; 5 g Bart.

Data from:
  MB100
  Table 1
  Line 1502:

Place of purchase:	Tucson
Date:	P 2010 May
Mass (g):	51.0
Pieces:	2
Class:	Eucrite
Ferrosilite (mol%):	62.6 (61.8-63.8)
Wollastonite (mol%):	1.4-3.6
Magnetic suscept.:	3.15
Classifier:	R. Bartoschewitz
Type spec mass (g):	10.4
Type spec location:	Kiel
Main mass:	S. Buhl, Hamb
Finder:	anonymous
Comments:	Submitted by Bartoschewitz

Institutions
and collections

Hamb: Mineralogisches Museum, Universität of Hamburg, Grindelallee 48, D-20146 Hamburg, Germany; Website (institutional address; updated 22 Feb 2013)
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)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)

Find references in NASA ADS:
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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 7859 approved meteorites from (Northwest Africa) (plus 1961 unapproved names)

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