Meteoritical Bulletin: Entry for Kumtag 059

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Kumtag 059

Basic information

Name: Kumtag 059
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2012
Country: China
Mass: 11.3 kg

Classification
history:

Meteoritical Bulletin:	MB 109	(2020)	L5
Recommended:			L5 [explanation]

This is 1 of 8891 approved meteorites (plus 5 unapproved names) classified as L5. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 21 Dec 2020

Writeup

Writeup from MB 109:

Kumtag 059 41°37’8.50"N, 93°41’23.56"E

Xinjiang, China

Find: 2012

Classification: Ordinary chondrite (L5)

History: (Ziyao Wang) Discovered by the geologist Jianming Wang (Hami/Xinjiang) during field work in the Kumtag Desert in 2012.

Physical characteristics: (Ziyao Wang) Black stone of 11.3 kg without fusion crust

Petrography: (R. Bartoschewitz, Bart) fractured recrystallized matrix with poorly developed chondrules of various types (0.4-1.5 mm, av. 0.7 mm). Fractures filled with iron hydroxides.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa_23.0±0.4(n=21); pyroxene Fs_19.5Wo_1.5(n=1); diopsid En₅₂Fs₈Wo₄₀(n=1). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10^-9 m³/kg) = 4.85

Classification: Ordinary chondrite (H5, S1, W4)

Specimens: 21.3 g at Kiel on deposit, Ziyao Wang holds the main mass and 138 g with Bart.

Data from:
  MB109
  Table 0
  Line 0:

State/Prov/County:	Xinjiang
Origin or pseudonym:	desert
Date:	2012
Latitude:	41°37'8.50"N
Longitude:	93°41'23.56"E
Mass (g):	11300
Pieces:	1
Class:	L5
Shock stage:	S3
Weathering grade:	W4
Fayalite (mol%):	23.0±0.4 (n=21)
Ferrosilite (mol%):	19.5 (n=1)
Wollastonite (mol%):	1.5
Magnetic suscept.:	4.85
Classifier:	R. Bartoschewitz
Type spec mass (g):	21.3
Type spec location:	Kiel
Main mass:	Ziyao Wang
Finder:	Jianming Wang
Comments:	working name WZ141; 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 Meteoritical Bulletin, no. 109, in preparation (2020)

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Geography:

China

Coordinates:
Recommended::	(41° 37' 9"N, 93° 41' 24"E)

Statistics:
This is 1 of 348 approved meteorites from Xinjiang, China (plus 6 unapproved names)
This is 1 of 518 approved meteorites from China (plus 13 unapproved names) (plus 1 impact crater)

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Revision
history:

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