Meteoritical Bulletin: Entry for Northwest Africa 13048

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Northwest Africa 13048

Basic information

Name: Northwest Africa 13048
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13048
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 13.7 g

Classification
history:

Recommended:

Mesosiderite-B [explanation]

This is 1 of 7 approved meteorites classified as Mesosiderite-B. [show all]
Search for other: Class B mesosiderites, Mesosiderites, and Metal-rich meteorites

Comments:

Approved 23 Feb 2023

Writeup

help

Writeup from MB 112:

Northwest Africa 13048 (NWA 13048)

(Northwest Africa)

Purchased: 2019

Classification: Mesosiderite (group B)

History: (Ziyao Wang) Purchased by Ziyao Wang from a Moroccan dealer at the China Mineral & Gem Show in Beijing City in Nov. 2019 and donated to Rainer Bartoschewitz in 2020

Physical characteristics: 13.7 g brown irregular angular stone

Petrography: (R. Bartoschewitz, Bart) The meteorite is composed of silicate (about 70 vol%) and metallic (about 30 vol%) portions. The silicate fraction is predominantly composed of low-Ca pyroxene up to 1 mm, and plagioclase. Minor phases are silica, chromite, ilmenite, FeS, and zircon. The metallic portion consists mostly of kamacite, with some taenite.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Low-Ca pyroxene Fs_31.5(22.3-36.2) Wo_2.3(1.5-3.0; n=6); augite En₄₃Fs₁₅Wo₄₂(n=2); feldspar An_9-93Or<1 (n=4); chromite CRAL82, FFM90 (n=2). Kamacite Ni 5.5-6.1, Co 0.7 (n=7); taenite Ni 37.3, Co 0.2 wt%. Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10^-9 m³/kg) = 4.78.

Classification: Mesosiderite-B

Specimens: 3.18 g on deposit in Kiel, main mass and polished section with Bart

Data from:
  MB112
  Table 0
  Line 0:

Origin or pseudonym:	desert
Place of purchase:	Beijing, China
Date:	P 2019
Mass (g):	13.7
Pieces:	1
Class:	Mesosiderite-B
Weathering grade:	low
Ferrosilite (mol%):	31.5±5.0 (n=6)
Wollastonite (mol%):	2.3±0.5
Magnetic suscept.:	4.78
Classifier:	R. Bartoschewitz
Type spec mass (g):	3.18
Type spec location:	Kiel
Main mass:	R. Bartoschewitz
Finder:	anonymous
Comments:	working name WZD#G03; 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)
Beijing: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 2011)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 112, in preparation (2023)

Find references in NASA ADS:
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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9042 approved meteorites from (Northwest Africa) (plus 1870 unapproved names)

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