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Koltsovo
Basic information Name: Koltsovo
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2004
Country: Russia
Mass:help 20.02 kg
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  H4
MetBase:  v. 7.1  (2006)  H4
Recommended:  H4    [explanation]

This is 1 of 5964 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeuphelp
Writeup from MB 89:

Koltsovo

Kaluga district, Russia

Found 2004, July

Ordinary chondrite (H4)

One stone weighing 20.02 kg was found by Svetlana Murashova and Stanislav Murashov while collecting mushrooms 2 km SSW of the Koltsovo village. The stone occurred at the edge of a ploughed field and was probably removed there during agriculture works. No other meteorite fragments were found in the field by Dr. Andrei .Stanyukovich of Moscow. Classification and mineralogy (M.Nazarov, Vernad): chondrules of different types and their fragments are well defined; olivine, Fa20.0, PMD 2.7%; pyroxene shows variable composition, Fs5-24Wo0.2-7.2, the mean, Fs12.9Wo1.2; shock stage S1; weathering grade W1. Specimens: 2034 g and a thin section, Vernad; main mass with the finders.

Data from:
  MB89
  Table 8
  Line 4:
State/Prov/County:Kaluga District
Date:Jul 2004
Latitude:54°45.03'N
Longitude:36°58.68'E
Mass (g):20.02 kg
Pieces:1
Class:H4
Shock stage:S1
Weathering grade:W1
Fayalite (mol%):20
Ferrosilite (mol%):5-24
Wollastonite (mol%):0.2-7.2
Classifier:M. Nazarov, Vernad
Type spec mass (g):2034
Main mass:S. Murashova and S. Murashov
Institutions
   and collections
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Sergey Vasiliev - SV-meteorites      
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Alan Mazur   
ale bartolommei-giulio M.   
AR   
David L. Ribeca      
Franco Vignato   
Gerald Armstrong   
Jim K   
Michael S. Scherman   
Michel Girard   
Nuno Chaves      
Predrag Radovic   
Robert Zdancewicz   
Suzanne De Paula   
Wang Ziyao      
Woreczko Jan & Wadi      
xeqtr   
Geography:

Russia
Coordinates:
     Recommended::   (54° 45' 2"N, 36° 58' 41"E)

Statistics:
     This is 1 of 3 approved meteorites from Kaluzhskaya oblast', Russia (plus 1 impact crater)
     This is 1 of 148 approved meteorites from Russia (plus 5 unapproved names) (plus 19 impact craters)
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