Meteoritical Bulletin: Entry for Northwest Africa 12303

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Northwest Africa 12303

Basic information

Name: Northwest Africa 12303
This is an OFFICIAL meteorite name.
Abbreviation: NWA 12303
Observed fall: No
Year found: 2017
Country: Morocco
Mass: 56.2 g

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	LL3
Recommended:			LL3 [explanation]

This is 1 of 487 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 27 Jul 2019

Writeup

help

Writeup from MB 108:

Northwest Africa 12303 (NWA 12303)

Morocco

Purchased: 2017

Classification: Ordinary chondrite (LL3)

History: (Ziyao Wang) Purchased by Ziyao Wang from Adnane Sami during the China (Hunan) Mineral & Gem Show in Chenzhou City in May 2017.

Physical characteristics: (Ziyao Wang) Dark brown flat stone of 56.2 g without fusion crust

Petrography: (R. Bartoschewitz, Bart) well defined chondrules (0.4-2.2 mm, av. 1 mm) of various types (PO, POP, RP, BO), chondrule fragments, and CAIs are set in dark-brown oxidized matrix.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa_23.4±7.4(n=12); pyroxene Fs_20.6±7.0Wo_0.7±0.4(n=10); An₁₅Or<1 (n=1); chromite CRAL78, FFM93 (n=3). Kamacite Ni=5.5, Co=1.4 (n=3); taenite Ni=36.2, Co=0,4 (n=1) (all wt.-%). Magnetic susceptibility log χ (× 10^-9 m³/kg) = 3.70

Classification: ordinary chondrite (LL3, S2)

Specimens: 11.3 g on deposit at Kiel, Ziyao Wang holds the main mass, and 7.5 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 2017
Mass (g):	56.2
Pieces:	1
Class:	LL3
Shock stage:	S2
Fayalite (mol%):	23.4±7.4 (n=12)
Ferrosilite (mol%):	20.6±7.0 (n=10)
Wollastonite (mol%):	0.7±0.4
Magnetic suscept.:	3.70
Classifier:	R. Bartoschewitz
Type spec mass (g):	11.3
Type spec location:	Kiel
Main mass:	Ziyao Wang
Finder:	anonymous
Comments:	working name WZ26; 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:
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Geography:

Morocco

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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.

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