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Basic information Name: Isheyevo
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2003
Country: Russia
Mass:help 16 kg
Meteoritical Bulletin:  MB 89  (2005)  Bencubbin-like
MetBase:  v. 7.1  (2006)  CBb
Recommended:  CH/CBb    [explanation]

This is the only approved meteorite classified as CH/CBb.
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CB chondrites, CH chondrites, CH-CB family, and Metal-rich meteorites
Comments: Revised 5 Jan 2009: Rec. class based on Krot et al. (2008)
Writeup from MB 89:


Bashkortostan, Russia.

Found 2003, October

Carbonaceous chondrite (Bencubbin-like meteorite)

One stone, weighing 16 kg, was found by a tractor driver in a field during harvest carrying in the Ishimbai region of Bashkortostan, close to the Isheyevo village. A small piece of the meteorite was issued to the Vernadsky Institute by Kazakov D.A., and Polozkov A.G, September 2004. Mineralogy and classification (Ivanova M.A. Vernad., Ulianov A.A. MSUM). Fusion crust is well developed, dark brown. The meteorite consists of FeNi metal grains, C, POP, rare BO chondrules (0.02-1 mm in size), chondrule fragments, CAIs, and matrix lumps. FeNi metal comprises from 50 to 70 vol%, and contains 4.2-8.4 wt% Ni, 0.2-0.5 wt% Co, and 0.03-0.6 wt% Cr; Co/Ni ratio is approximately solar. C chondrules don’t contain any FeNi metal grains, they are Mg-rich, and consist of pyroxene-rich cryptocrystalline material. Olivine, Fa2.5, rare FeO-rich olivines, Fa10-38 ; pyroxene, Fs2.1Wo1.7 , FeO-rich pyroxene, Fs8-12Wo0.8-1.8; troilite is Cr-rich, 2.5 wt% Cr. INAA data for a 20 mg chip: 2.74 wt.% Ni; 717 ppm Co; 2608 ppm Cr, 8.2 ppm Sc, and 1.59 ppm Ir. Petrological type 3; shock stage, S1; weathering grade, W1. Specimens: a type specimen, 24.3 g, and two sections, Vernad; main mass with anonymous finder.

   and collections
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
MSUM: Department of Geology, Moscow State University, Vorobjovy Gory, Moscow, 119899, Russia (institutional address; updated 1 Mar 2011)
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References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Photos from the Encyclopedia of Meteorites:
Don Edwards   
Sergey Vasiliev         
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Alan Mazur   
Christophe PICQ      
Cute child   
Dominik Stoeckli   
Domjan Svilkovic   
Jay Buscio      
Jay Piatek   
Jingyu Tan   
Maxime Denoncin   
Robert Smart   
Solar Anamnesis         
Volker Heinrich   
Woreczko Jan & Wadi   
Ziyao Wang         
Public domain photographs:
Dmitri Kazakov   

     Recommended::   (53° 37'N, 56° 20'E)

     This is 1 of 4 approved meteorites from Respublika Bashkortostan, Russia
     This is 1 of 156 approved meteorites from Russia (plus 5 unapproved names) (plus 19 impact craters)
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