Meteoritical Bulletin: Entry for Northwest Africa 12305

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 24 Apr 2024
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

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: 13.5 kg

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	L6
Recommended:			L6 [explanation]

This is 1 of 12780 approved meteorites (plus 11 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

Writeup

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 Fa_25.0±2.4(n=17); pyroxene Fs_20.7±0.8Wo_1.1±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 (2020) Meteorit. Planet. Sci. 55, 1146-1150

Find references in NASA ADS:
Find references in Google Scholar:

Geography:

Mauritania

Coordinates:

Unknown.

Statistics:
This is 1 of 221 approved meteorites from Mauritania (plus 2 unapproved names) (plus 2 impact craters)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

Direct link to this page