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Eisen meteorite

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Muonionalusta

The Muonionalusta is a meteorite classified as fine octahedrite, type IVA (Of) which impacted in northern Scandinavia, west of the border between Sweden and Finland, about one million years BCE.

Muonionalusta
Muonionalusta meteorite.png
The Muonionalusta, on loan to the Prague National Museum in 2010. It is the largest meteorite ever exhibited in the Czech Republic.
Type IVA (Of)
Structural classification Fine Octahedrite
Class Octahedrite
Group Iron
Composition Ni, Ga, Ge
Country Sweden
Region Norrbotten
Coordinates 67°48′N 23°6.8′E
Observed fall No
Found date 1906
Strewn field Yes

The first fragment of the Muonionalusta was found in 1906 near the village of Kitkiöjärvi.[1] Around forty pieces are known today, some being quite large. Other fragments have been found in a 25-by-15-kilometre (15.5 mi × 9.3 mi) area in the Pajala district of Norrbotten County, approximately 140 kilometres (87 mi) north of the Arctic Circle.

The meteorite was first described in 1910 by Professor A. G. Högbom, who named it "Muonionalusta", after a nearby place on the Muonio River. It was studied in 1948 by Professor Nils Göran David Malmqvist.[2] The Muonionalusta, probably the oldest known meteorite (4.5653 billion years),[3] marks the first occurrence of stishovite in an iron meteorite.

 

 

 

 

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Nummer 1 Pendant

Date: 2017-07-08
Picture: 2
Folders: 0
 

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