Meteoritical Bulletin: Entry for Northwest Africa 3260

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Northwest Africa 3260

Basic information

Name: Northwest Africa 3260
This is an OFFICIAL meteorite name.
Abbreviation: NWA 3260
Observed fall: No
Year found: 2007
Country: (Northwest Africa)
Mass: 8.2 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	LL3
Recommended:			LL3 [explanation]

This is 1 of 444 approved meteorites classified as LL3. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 21 May 2016

Writeup

help

Writeup from MB 105:

Northwest Africa 3260 (NWA 3260)

(Northwest Africa)

Purchased: 2007

Classification: Ordinary chondrite (LL3)

History: Purchased in Rissani in 2007.

Physical characteristics: (R. Bartoschewitz, Bart) One brown stone of 8.2 g; saw cut shows closely packed chondrules.

Petrography: (R. Bartoschewitz, Bart) Microscopic examination of a thin section shows dark fine groundmass with mineral fragments, chondrules (PO, BO, RP, dominated by type I) up to 1.7 mm (avg. 1 mm), and CAIs. Chondrule/matrix ratio ~10.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine, Fa_13.7±8.3(n=18); pyroxene, Fs_9.9±5.7Wo_1.6±1.3(n=20); Ca-pyroxene, En_86±8Fs_7.5±6Wo_6.5±0.3(n=2, Fe/Mn=27); kamacite, Ni=2.5-3.9, Co=0.5 wt.%. O-isotopes (R. Greenwood and Ian Franchi, OU): δ¹⁷O = 3.569, δ¹⁸O = 5.65 (permil). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10^-9 m³/kg) = 3.75.

Classification: Ordinary chondrite (LL3)

Specimens: 1.6 g on deposit at Kiel, main mass Bilet (As, Norway), and Bart 1.0 g.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Rissani
Date:	P 2007
Mass (g):	8.2
Pieces:	1
Class:	LL3
Shock stage:	S1
Fayalite (mol%):	13.7±8.3 (n=18)
Ferrosilite (mol%):	9.9±5.7 (n=20)
Wollastonite (mol%):	1.6±1.3
Magnetic suscept.:	3.40
Classifier:	R. Bartoschewitz, Bart
Type spec mass (g):	1.6
Type spec location:	Kiel
Main mass:	Bilet
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:
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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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