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Dronino
Basic information Name: Dronino
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2000
Country: Russia
Mass:help 3 t
Classification
  history:
Meteoritical Bulletin:  MB 88  (2004)  Iron-ung
MetBase:  v. 7.1  (2006)  Iron-ung
Recommended:  Iron, ungrouped    [explanation]

This is 1 of 116 approved meteorites (plus 1 unapproved name) classified as Iron, ungrouped.   [show all]
Search for other: Metal-rich meteorites, Ungrouped irons, and Iron meteorites
Comments: Revised 26 Sep 2014: Fixed mass to agree with text
Writeuphelp
Writeup from MB 88:

Dronino

Ryazan district, Russia

Found July 2000

Iron, ataxite (ungrouped)

A 40 kg iron was found by Oleg Gus’kov, Moscow resident, as he was returning home from collecting mushrooms near the village of Dronino in the Ryazan district. In early 2003, it was taken to Vernad, and identified as meteoritic. In summer 2003, scientific expeditions and meteorite hunters collected more than 600 fragments (the largest is 250 kg) totaling about 3 000 kg and occurring at a depth of 0.2-2 m across an area of 0.5x1.5 km. The distribution of the fragments suggests that the meteorite formed a now-buried crater about 30 m in diameter. This crater is not reflected in the present-day topography of the site. No historical records exist of a meteorite fall, thus it appears likely that the meteorite fell earlier than the 12th century when the area was largely unpopulated. Classification and mineralogy (D. Badyukov, M. Nazarov, Vernad; J. Wasson, UCLA): the Dronino iron is an ataxite containing sulfide inclusions (~10 vol.%) and consisting of kamacite (7.0±0.5 wt% Ni and 0.75 wt% Co) and rare taenite (26.5±0.5 wt% Ni and 0.35 wt% Co) as elongated precipitates (1-3 μm in size) which form linear and banded textures; sulfide inclusions (up to a few mm in size) rounded and elongated along the banding; accessories are chromite and Fe phosphate (graftonite?); no phosphide was found and P is not detectable in metal with EMP; INAA data: Ni 98.1, Co 5.54 (mg/g), Cr 37, Cu 32, Ga <0.3, As 3.52, W 0.38, Ir 1.68 ppm, Au 0.284 (μg/g); the meteorite is most close to IVA irons in Ni, Ir and the low P but the low Au and Ga contents distinguish the Dronino element pattern from that of all known iron meteorite groups. Dronino meteorite fragments are heavily weathered and covered with rust 1-3 cm thick. Sulfide nodules are surrounded by Fe hydroxides, which replace metal. Troilite of the nodules is commonly replaced with unknown Fe,Ni sulfides. Specimens: type specimen 700 kg including the largest 250 kg piece Vernad.

Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 5 Dec 2011)
Catalogs:
Search for specimens in the Smithsonian Institution collection (U.S.):   
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Search for this meteorite in the Natural History Museum collection (U.K.):   
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References: Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Polandmet   
Vernadsky Institute, Moscow         
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Aeroliths Collection Theodossiou                  
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Alberto Giusta      
Alexander Kovalev      
Allmeteorite.com   
Anna Morris   
AVB   
Collectionspace di Luigi Pizzimenti   
David L. Ribeca   
Denis gourgues         
Franco Vignato      
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Jean-Michel Masson   
Jim K      
John Harrison   
Jörg-Florian Jensch   
KD Meteorites   
Marcelo Adorna Fernandes   
MeteoriteCollector.org - FCOM - Russ Finney      
MeteoriteCollector.org - RNWM - Rice Museum   
METEORITICON         
Michael Mulgrew   
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Nuno Chaves   
Piotr gural100   
Robert Zdancewicz   
Runar Sandnes   
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Stefano De Fazi      
Suzanne De Paula   
The Wilcox Collection of Meteorites   
Woreczko Jan & Wadi   
xeqtr   
Geography:

Russia
Coordinates:
     Recommended::   (54° 44' 48"N, 41° 25' 18"E)

Statistics:
     This is 1 of 2 approved meteorites from Ryazanskaya oblast', Russia
     This is 1 of 135 approved meteorites from Russia (plus 5 unapproved names) (plus 19 impact craters)
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