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Basic information Name: Itaka
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2015
Country: Russia
Mass:help 900 g
Meteoritical Bulletin:  MB 105  (2016)  Iron, IIIAB
Recommended:  Iron, IIIAB    [explanation]

This is 1 of 331 approved meteorites classified as Iron, IIIAB.   [show all]
Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 23 Jul 2016
Writeup from MB 105:

Itaka        53°52.65’N, 118°41.45’N

Chitinskaya oblast’, Russia

Find: 2015 Jul

Classification: Iron meteorite (IIIAB)

History: The meteorite was found by Mr. Grikov on the banks of the Itaka river between the mouths of the Sukhaya Itaka river and the Aleksey river, near the the town of Itaka. The meteorite was possibly excavated during gold mining.

Physical characteristics: The 900 g meteorite has an ellipsoidal shape. The oxidized surface shows a relict Widmanstätten structure.

Petrography: (C. Lorenz, S. Teplyakova, Vernad) the meteorite consists of kamacite, taenite, plessitic aggregate, minor FeNi phosphides (schreibersite and rhabdites) and accessory troilite. The average kamacite bandwidth is 4.5 mm.

Geochemistry: (N. N. Kononkova, Vernad) kamacite: Ni = 5.47, Co = 0.5; taenite: Ni = 30.6 - 50.5 (all in wt%); (ICP-AS, I. A. Gromyak, ICP-MS, E. S. Toropchenova, Vernad, bulk sample) Ni 9.16 wt %, Co 0.53, Au 1.15, Ga 26.2, Ir 2.29, Cr 9.82, W 0.47, As 8.18 (all in ppm).

Classification: Iron (IIIAB), coarsest octahedrite (Ogg), moderately weathered.

Specimens: The type specimen of 108 g and one polished section are on deposit at the Vernad. Mr. Sergey V. Grikov holds a main mass of the meteorite.

Data from:
  Table 0
  Line 0:
State/Prov/County:Chitinskaya oblast'
Origin or pseudonym:Mogochinsky district
Date:2015 Jul
Mass (g):900
Class:Iron, IIIAB
Classifier:C. Lorenz, S. Teplyakova, Vernad
Type spec mass (g):108
Type spec location:Vernad
Main mass:Mr. Sergey V. Grikov
Finder:Mr. Sergey V. Grikov
Comments:Submitted by C. A. Lorenz, Vernad.
   and collections
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     Recommended::   (53° 52' 39"N, 118° 41' 27"E)

     This is 1 of 2 approved meteorites from Chitinskaya oblast', Russia
     This is 1 of 151 approved meteorites from Russia (plus 5 unapproved names) (plus 19 impact craters)
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