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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:help 235 g
Classification
  history:
Recommended:  L6    [explanation]

This is 1 of 11460 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
Writeuphelp
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 Fa23.9±0.7 (n=20); poor Ca pyroxene Fs20.3±0.6 (n=9), Wo2.0±0.4: high Ca pyroxene En75Fs18Wo7. 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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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Wang Ziyao      
Geography:

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

Statistics:
     This is 1 of 261 approved meteorites from Xinjiang, China (plus 5 unapproved names)
     This is 1 of 413 approved meteorites from China (plus 15 unapproved names) (plus 1 impact crater)
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