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Toksun 002
Basic information Name: Toksun 002
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2022
Country: China
Mass:help 645 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2023)  Iron, IVA
Recommended:  Iron, IVA    [explanation]

This is 1 of 83 approved meteorites (plus 1 unapproved name) classified as Iron, IVA.   [show all]
Search for other: Iron meteorites, IVA irons, and Metal-rich meteorites
Comments: Approved 4 Mar 2023
Writeuphelp
Writeup from MB 112:

Toksun 002        42°41.411’N, 88°59.953’E

Xinjiang, China

Find: 16 March 2022

Classification: Iron meteorite (IVA)

History: Discovered by Aili and Yimaer in the desert near Ayding Lake, Xinjiang Province, on March 16, 2022, and subsequently acquired by Ziyao Wang in March 2022.

Physical characteristics: The single, rounded mass has a dark brown surface with light-colored patches.

Petrography: (C. Herd, UAb) Examination of polished and etched surfaces shown in photos provided by the owner reveals a well-developed Widmanstaetten pattern consistent with finest octahedrite. No inclusions are apparent. No alteration of the interior is evident.

Geochemistry: ICP-MS data, using sample of North Chile (Filomena) as standard (C. Herd and S. DuFrane UAb): Ni = 9.3, Co = 0.412 (both wt%); Ir = 1.9, Ga = 2.4, As = 9.2, Ru = 3.3, Pd = 5.7, Re = 0.19, W = 0.58, Pt = 5.2, Cu = 128, Au = 2.0 (all μg/g). Ge below detection.

Classification: (C. Herd, UAb): IVA iron.

Specimens: Type specimen of 28.5 g at UAb. Main mass with Ziyao Wang.

Data from:
  MB112
  Table 0
  Line 0:
State/Prov/County:Xinjiang
Date:16 March 2022
Latitude:42°41.411'N
Longitude:88°59.953'E
Mass (g):645
Pieces:1
Class:Iron, IVA
Shock stage:low
Weathering grade:low
Classifier:C. Herd, UAb
Type spec mass (g):28.5
Type spec location:UAb
Main mass:Ziyao Wang
Comments:Lab number WangZY-12; submitted by C. Herd
Institutions
   and collections
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Ziyao Wang            
Geography:

China
Coordinates:
     Recommended::   (42° 41' 25"N, 88° 59' 57"E)

Statistics:
     This is 1 of 346 approved meteorites from Xinjiang, China (plus 6 unapproved names)
     This is 1 of 516 approved meteorites from China (plus 13 unapproved names) (plus 1 impact crater)
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Revision
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