Chinga meteorite

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Chinga
ChingaMeteorite.jpg
Type Achondrite
Structural classification Ataxite
Group IVB-an, (2000), Iron-ung (2006)[1]
Composition Meteoric iron: 16.7 % Ni, very rare kamacite lamella. Inclusions: daubréelite.[2]
Region Russia
Coordinates 51°3′30″N 94°24′0″E / 51.05833°N 94.40000°E / 51.05833; 94.40000Coordinates: 51°3′30″N 94°24′0″E / 51.05833°N 94.40000°E / 51.05833; 94.40000
Observed fall No
Found date 1913
TKW 209.4 kilograms (462 lb)

The Chinga meteorite is an iron meteorite. It is structurally an ataxite with very rare kamacite lamella. The meteoric iron is a part of the lamella taenite.[2] The total chemical composition is 82.8% iron, 16.6% nickel, and the rest mostly cobalt and phosphorus.[3]

History[edit]

Fragments of the meteorite were found in 1913 by gold diggers in Tuva near the Chinge River after which it is named. Eventually, Nikolay Chernevich, a mining engineer supervising the gold diggers, sent thirty pieces, the heaviest of which was 20.5 kilograms (45 lb) to the Russian Academy of Sciences in Saint Petersburg.[3] Later expeditions have retrieved about 250[citation needed] pieces with a total mass of 209.4 kilograms (462 lb).[1]

No impact structure was found.[3] Studies from the fluvial deposits in which the meteorites was found, estimate that it fell about 10,000 to 20,000 years ago. It burst during passage through the atmosphere, the pieces impacting on a glacier.[citation needed]

As of December 2012 pieces of Chinga meteorite were on sale for US$1 to 2/g.[4]

Classification[edit]

The Chinga meteorite was classified as an IVB meteorite (Subgroup "an") in 2000, but was reclassified as an Iron ungrouped (Iron-ung) in 2006.[1]

In culture[edit]

The Iron Man is a statue that was possibly made from a fragment of the Chinga meteorite.[5]

Researchers say the 1,000-year-old object with a swastika on its stomach is made from a rare form of iron with a high content of nickel.[6]

References[edit]

  1. ^ a b c "Meteoritical Bulletin Database". Meteoritical Society. Retrieved 19 December 2012. 
  2. ^ a b Axon, H. J.; P. L. Smith (1972). "A metallographic study of some iron meteorites of high nickel content" (PDF). Mineralogical Magazine 38: 736–755. doi:10.1180/minmag.1972.038.298.10. Retrieved 19 December 2012. 
  3. ^ a b c Антуфьева, Надя (November 17, 2012). Загадка тувинского метеорита Чинге: к столетию открытия посланца Космоса. Центр Азии (in Russian) 2012 (45). 
  4. ^ Farmer, Michael. "Chinga". Meteorites for Sale. Michael Farmer Meteorites. Retrieved 24 December 2012. 
  5. ^ BUCHNER, Elmar; SCHMIEDER, Martin; KURAT, Gero; BRANDSTÄTTER, Franz; KRAMAR, Utz; NTAFLOS, Theo; KRÖCHERT, Jörg (1 September 2012). "Buddha from space-An ancient object of art made of a Chinga iron meteorite fragment*". Meteoritics & Planetary Science 47 (9): 1491–1501. doi:10.1111/j.1945-5100.2012.01409.x. 
  6. ^ http://onlinelibrary.wiley.com/doi/10.1111/j.1945-5100.2012.01409.x/abstract

See also[edit]