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Tin-Essako 002
Basic information Name: Tin-Essako 002
     This is an OFFICIAL meteorite name.
Abbreviation: TE 002
Observed fall: No
Year found: 2020
Country: Mali
Mass:help 32 kg
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Iron, IIIAB
Recommended:  Iron, IIIAB    [explanation]

This is 1 of 341 approved meteorites classified as Iron, IIIAB.   [show all]
Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 5 Jul 2022
Writeuphelp
Writeup from MB 111:

Tin-Essako 002 (TE 002)        18°28’N, 1°36’E

Gao, Mali

Find: 2020

Classification: Iron meteorite (IIIAB)

History: Reportedly found by people searching for gold in the Tin Essako desert in 2020. Purchased in the same year by Mark Lyon.

Physical characteristics: The 32 kg mass is wedge-shaped with a mostly black surface except for a one dark brown surface ringed by tan caliche. Regmaglypts are present although not prominent.

Petrography: (C. Herd, UAb) Optical examination of a ~3 × 5 cm polished and etched surface reveals a well-developed Widmanstatten pattern with average kamacite bandwidth 1.0±0.2 mm (n=28). No inclusions are apparent. Alteration extends along some grain boundaries into the interior.

Geochemistry: ICP-MS data, using sample of North Chile (Filomena) as standard (C. Herd, P. Hill, and S. DuFrane UAb): Ni = 8.4, Co = 0.520 (both wt%); Ir = 0.6, Ga = 24, Ge = 50, As = 5.7, Sb = 0.05, Pt = 7.0, Cu = 152, Au = 0.75 (all µg/g).

Classification: (C. Herd, UAb): IIIAB iron, medium octahedrite.

Specimens: Type specimen of 42.8 g at UAb. Main mass with Mark Lyon.

Data from:
  MB111
  Table 0
  Line 0:
State/Prov/County:Gao
Date:2020
Latitude:18°28'N
Longitude:1°36'E
Mass (g):32000
Pieces:1
Class:Iron, IIIAB
Shock stage:low
Weathering grade:low
Classifier:C. Herd, UAb
Type spec mass (g):42.9
Type spec location:UAb
Main mass:Mark Lyon
Comments:Coordinates provided are approximate.; 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 Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography:

Mali
Coordinates:
     Recommended::   (18° 28'N, 1° 36'E)

Statistics:
     This is 1 of 30 approved meteorites from Gao, Mali (plus 1 unapproved name)
     This is 1 of 112 approved meteorites from Mali (plus 3 unapproved names)
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