Description
Not so frequent russian meteorite find of 2004. Part slice – 3.1g sold in a collection with label/certificate of authenticity.
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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.
| 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 |
