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Northwest Africa 12305
Basic information Name: Northwest Africa 12305
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12305
Observed fall: No
Year found: 2018
Country: Mauritania
Mass:help 13.5 kg
Classification
  history:
Recommended:  L6    [explanation]

This is 1 of 11076 approved meteorites (plus 6 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 6 Oct 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12305 (NWA 12305)

Mauritania

Purchased: 2018

Classification: Ordinary chondrite (L6)

History: (Ziyao Wang) Purchased by Ziyao Wang from Adnane Sami during the China (Hunan) Mineral & Gem Show in Chenzhou City in Sept. 2018.

Physical characteristics: (Ziyao Wang) Two brown-black individuals of 13282 g and 217.5 g.

Petrography: (R. Bartoschewitz, Bart) black shock-darkened matrix with indistinct chondrules accompanied by melt pockets of μm-sized matrix.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa25.0±2.4 (n=17); pyroxene Fs20.7±0.8Wo1.1±0.3 (n=4); An13Or6 (n=1); merrillite. Kamacite Ni=6.9, Co=1.0 wt-% (n=1). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.78

Classification: ordinary chondrite (L6, with melt pockets)

Specimens: 22 g on deposit at Münster, Ziyao Wang holds the main mass, and 188 g with Bart. Polished thin sections Bart and IfP

Data from:
  MB108
  Table 0
  Line 0:
Origin or pseudonym:desert
Place of purchase:Chenzhou, Hunan
Date:P 2018
Mass (g):13500
Pieces:2
Class:L6
Fayalite (mol%):25.0±2.4 (n=17)
Ferrosilite (mol%):20.7±0.8 (n=4)
Wollastonite (mol%):1.1±0.3
Magnetic suscept.:4.78
Classifier:R. Bartoschewitz
Type spec mass (g):22.0
Type spec location:IfP
Main mass:Ziyao Wang
Finder:anonymous
Comments:working name WZ31; submitted by R. Bartoschewitz
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
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. 108, in preparation (2019)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Wang Ziyao               
Geography:

Mauritania
Coordinates:Unknown.

Statistics:
     This is 1 of 110 approved meteorites from Mauritania (plus 1 unapproved name) (plus 2 impact craters)

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