Meteoritical Bulletin: Entry for Kumtag 055

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Kumtag 055

Basic information

Name: Kumtag 055
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2013
Country: China
Mass: 235 g

Classification
history:

Recommended:

L6 [explanation]

This is 1 of 11538 approved meteorites (plus 6 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 17 Feb 2020

Writeup

Writeup from MB 109:

Kumtag 055 41°35’51.44"N, 93°47’42.43"E

Xinjiang, China

Find: 2013

Classification: Ordinary chondrite (L6)

History: (Ziyao Wang) Discovered by the geologist Jianming Wang (Hami/Xinjiang) during field work in the Kumtag Desert in 2013

Physical characteristics: (Ziyao Wang) Black, irregular stone without fusion crust of 235.3 g

Petrography: (R. Bartoschewitz, Bart) fractured shock-darkened matrix with chondrules and mineral fragments.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa_23.9±0.7(n=20); poor Ca pyroxene Fs_20.3±0.6(n=9), Wo_2.0±0.4: high Ca pyroxene En₇₅Fs₁₈Wo_7.Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10^-9 m³/kg) = 4.71.

Classification: Ordinary chondrite (L6 shock darkened, S4, W2)

Specimens: 22.3 g on deposit at Kiel, Ziyao Wang holds the main mass, and 30 g with Bart.

Data from:
  MB109
  Table 0
  Line 0:

State/Prov/County:	Xinjiang
Origin or pseudonym:	desert
Date:	2013
Latitude:	41°35'51.44"N
Longitude:	93°47'42.43"E
Mass (g):	235.3
Pieces:	1
Class:	L6
Shock stage:	S4
Weathering grade:	W2
Fayalite (mol%):	23.9±0.7 (n=20)
Ferrosilite (mol%):	20.3±0.6 (n=9)
Wollastonite (mol%):	2.0±0.4
Magnetic suscept.:	4.71
Classifier:	R. Bartoschewitz
Type spec mass (g):	22.3
Type spec location:	Kiel
Main mass:	Ziyao Wang
Finder:	Jianming Wang
Comments:	working name WZ55; 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)

Find references in NASA ADS:
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Geography:

China

Coordinates:
Recommended::	(41° 35' 51"N, 93° 47' 42"E)

Statistics:
This is 1 of 272 approved meteorites from Xinjiang, China (plus 4 unapproved names)
This is 1 of 427 approved meteorites from China (plus 11 unapproved names) (plus 1 impact crater)

Proximity search:

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