Meteoritical Bulletin: Entry for Northwest Africa 7369

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Northwest Africa 7369

Basic information

Name: Northwest Africa 7369
This is an OFFICIAL meteorite name.
Abbreviation: NWA 7369
Observed fall: No
Year found: 2007
Country: Western Sahara
Mass: 650 g

Classification
history:

Meteoritical Bulletin:	MB 101	(2012)	R5
Recommended:			R5 [explanation]

This is 1 of 41 approved meteorites classified as R5. [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 4-7)

Comments:

Approved 12 Sep 2012

Writeup

help

Writeup from MB 101:

Northwest Africa 7369 (NWA 7369) ~22°12’N, ~13°09’W

Western Sahara

Found: 2007

Classification: Rumuruti chondrite (R5)

History: Discovered by an anonymous finder near Aghoninit, Western Sahara

Physical characteristics: One complete individual of 650 g covered with fresh black fusion crust.

Petrography: (R. Bartoschewitz, Bart) Chondrules (0.3-0.6 mm), larger chondrule fragments (<2 mm), olivine and pyroxene fragments (<0.3 mm) set in a recrystallized matrix. Chromite (<0.2 mm) is distributed throughout the matrix and also inside some chondrules. Feldspar is mostly transformed to maskelynite and dominantly forms assemblages with chromite. Accessory minerals are pentlandite and troilite.

Geochemistry: (R. Bartoschewitz, Bart; P. Appel, B. Mader, Kiel) Olivine Fa_38.4-39.6(n=26); clinopyroxene Fs_11.3-16.0Wo_40.0-46.1(n=15). Chromite Al₂O₃ = 4, TiO₂ = 5, MgO = 1; pentlandite Ni = 33, Co = 1; troilite Ni = 2.5, Co = 0.2 (all in wt%).

Classification: Rumuruti chondrite (R5), W0

Data from:
  MB101
  Table 0
  Line 0:

State/Prov/County:	Rio de Oro
Origin or pseudonym:	Aghoninit
Date:	2007
Latitude:	~22°12'N
Longitude:	~13°09'W
Mass (g):	650
Pieces:	1
Class:	R5
Weathering grade:	W0
Fayalite (mol%):	39.1 (38.4-39.6; n=26)
Magnetic suscept.:	3.69
Classifier:	R. Bartoschewitz, Bart; P. Appel, B. Mader, Kiel
Type spec mass (g):	20.0
Type spec location:	Kiel
Main mass:	anonymous
Finder:	anonymous
Comments:	Submitted by Bartoschewitz

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)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015

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Geography:

Western Sahara

Western Sahara

Coordinates:
Recommended::	(22° 12'N, 13° 9'W)

Statistics:
This is 1 of 50 approved meteorites from Rio de Oro, Western Sahara
This is 1 of 280 approved meteorites from Western Sahara (plus 20 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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