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Kumtag 061
Basic information Name: Kumtag 061
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2019
Country: China
Mass:help 2.54 kg
Classification
  history:
Recommended:  Brachinite    [explanation]

This is 1 of 53 approved meteorites classified as Brachinite.   [show all]
Search for other: Brachinites, Primitive achondrites
Comments: Approved 19 Nov 2020
Writeuphelp
Writeup from MB 109:

Kumtag 061        41°16’9.20’’N, 93°14’14.10’’E

Xinjiang, China

Find: 27 Oct. 2019

Classification: Primitive achondrite (Brachinite)

History: The meteorite was discovered by Wang Zijian and Chen Pengli in Kumtag desert during their meteorite hunting campaign on 27 Oct 2019.

Physical characteristics: One stone partly covered with fusion crust. The mass of the meteorite is 2540 g.

Petrography: Dunitic rock with subequigranular texture.The dominant mineral of the meteorite is olivine (grain size 0.25-1.2 mm). Both pyroxene and plagioclase with grain size varies from several microns to about 0.7 mm. Troilite is dispersed in other grains and gaps among minerials. Anhedral chromite grains with sizes between 0.1 to 0.7 mm.

Geochemistry: Olivine Fa34.8-36.2, FeO/MnO=65.3-98.7, N=12; low-Ca pyroxene Fs27.7-29.5Wo2.1-5.1, FeO/MnO=66.0-69.9, N=8; Plagioclase An29.2-35.4 (EPMA).

Data from:
  MB109
  Table 0
  Line 0:
State/Prov/County:Xinjiang
Origin or pseudonym:Kumtag
Date:27 Oct. 2019
Latitude:41°16'9.20''N
Longitude:93°14'14.10''E
Mass (g):2540
Pieces:1
Class:Brachinite
Fayalite (mol%):35.5±0.4
Ferrosilite (mol%):28.8±0.6
Wollastonite (mol%):2.7±1.0
Classifier:Li shijie and Fan yan
Type spec mass (g):40
Type spec location:IGCAS
Main mass:Wang Zijian and Chen Pengli
Finder:Wang Zijian & Chen Pengli
Comments:Submitted by Li shijie
Institutions
   and collections
IGCAS: Institute of Geochemistry Chinese Academy of Sciences, Guiyang, China (institutional address; updated 27 Mar 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Photos:
CreditPhotos
Public domain photographs:
Shijie Li         
Geography:

China
Coordinates:
     Recommended::   (41° 16' 9"N, 93° 14' 14"E)

Statistics:
     This is 1 of 262 approved meteorites from Xinjiang, China (plus 5 unapproved names)
     This is 1 of 414 approved meteorites from China (plus 14 unapproved names) (plus 1 impact crater)
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