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Northwest Africa 12301
Basic information Name: Northwest Africa 12301
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12301
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 7.5 kg
Classification
  history:
Recommended:  L5    [explanation]

This is 1 of 6501 approved meteorites (plus 4 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 13 Nov 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 12301 (NWA 12301)

(Northwest Africa)

Purchased: 2017 Apr

Classification: Ordinary chondrite (L5)

History: Discovered by an anonymous person and purchased in Erfoud in April 2017

Physical characteristics: One brown stone with regmaglypts. Cut face shows tiny metal specks.

Petrography: (R. Bartoschewitz, Bart) Microscopic examination of a thin section shows recrystallized and shocked matrix: mosaicism and planar fractures in olivine, undolatory extinction in plagioclase. Chondrules poor developed. Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.04.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa24.3±0,9 (n=32); pyroxene Fs20.4±1.2 Wo1.5±0.2 (n=19); Ca-pyroxene Fs48.8Wo43.1 (n=1); feldspar An10.1±0.3Or5.9±1.2 (n=9). Kamacite Ni=2.9-5.3, Co=1.0 wt.-% (n=2). Sulfides: troilite, pyrrhotite, and pyrite.

Classification: Ordinary chondrite (type L5)

Specimens: 20.2 g on deposit at Kiel, main mass Kuntz.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2017 Apr
Mass (g):7500
Pieces:1
Class:L5
Shock stage:S3/4
Weathering grade:W3
Fayalite (mol%):24.3±0,9 (n=32)
Ferrosilite (mol%):20.4±1.2 (n=19)
Wollastonite (mol%):1.5±0.2
Magnetic suscept.:4.04
Classifier:R. Bartoschewitz
Type spec mass (g):20.2
Type spec location:Kiel
Main mass:Fabien Kuntz
Finder:Anonymous
Comments:working name K369; submitted by R. 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, Lehmweg 53, D-38518 Gifhorn, Germany; Website (private address; updated 4 Aug 2013)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6781 approved meteorites from (Northwest Africa) (plus 2047 unapproved names)

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