Meteoritical Bulletin: Entry for Northwest Africa 13894

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Northwest Africa 13894

Basic information

Name: Northwest Africa 13894
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13894
Observed fall: No
Year found: 2020
Country: Morocco
Mass: 890 g

Classification
history:

Recommended:

L5-melt breccia [explanation]

This is 1 of 35 approved meteorites classified as L5-melt breccia. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 24 Jul 2021

Writeup

Writeup from MB 110:

Northwest Africa 13894 (NWA 13894)

Morocco

Purchased: 2020

Classification: Ordinary chondrite (L5, melt breccia)

History: (Ziyao Wang) Purchased by Ziyao Wang from Fayssal Mezgouri in Agadir, Morocco, Nov 2020.

Physical characteristics: (Ziyao Wang) Gray-black oval stones of 890 g, with some fusion crust

Petrography: (R. Bartoschewitz, Bart) rounded lithic clasts composed of well outlined chondrules, chondrule and mineral fragments set in a black melt.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa_23.1-24-5(n=11); low-Ca pyroxene Fs_19.4-23.2Wo_1.0-3.2(n=8); Ca-pyroxene En_59-14Fs_12-7Wo_20-29(n=2); kamacite Co 0.8 wt% (n=1). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10^-9 m³/kg) = 5.36.

Classification: Ordinary chondrite (L5 melt breccia)

Specimens: 20.3 g on deposit at Kiel, Ziyao Wang holds the main mass, and 89 g with Bart.

Data from:
  MB110
  Table 0
  Line 0:

Origin or pseudonym:	desert
Place of purchase:	Agadir, Morocco
Date:	P 2020
Mass (g):	890
Pieces:	1
Class:	L5-melt breccia
Shock stage:	S2
Weathering grade:	W1
Fayalite (mol%):	23.4±0.4 (n=18)
Ferrosilite (mol%):	20.4±1.4 (n=6)
Wollastonite (mol%):	1.7±0.8
Magnetic suscept.:	5.36
Classifier:	R. Bartoschewitz
Type spec mass (g):	20.3
Type spec location:	Kiel
Main mass:	Ziyao Wang
Finder:	anonymous
Comments:	working name WZ175; 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, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)

Catalogs:

References:

Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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

Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Ziyao Wang

Geography:

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 1991 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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