Medvezhia
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Medvezhya (russian: Медве́жий; ja, 茂世路岳, ''Moyoro-dake'') is a volcanic complex located at the northern end of
Iturup , other_names = russian: Итуру́п; ja, 択捉島 , location = Sea of Okhotsk , coordinates = , archipelago = Kuril Islands , total_islands = , major_islands = , area_km2 = 3139 , length_km = 200 , width_km = 27 , coastline = , highest_moun ...
Island, Kuril Islands, Russia.
Rheniite Rheniite is a very rare rhenium sulfide mineral with the chemical formula ( ). It forms metallic, silver grey platey crystals in the triclinic - pinacoidal class. It has a specific gravity of 7.5. It was discovered at the Kudriavy Volcano, Iturup ...
, a rhenium
sulfide Sulfide (British English also sulphide) is an inorganic anion of sulfur with the chemical formula S2− or a compound containing one or more S2− ions. Solutions of sulfide salts are corrosive. ''Sulfide'' also refers to chemical compounds lar ...
mineral (ReS2), was discovered and approved in 2004. It is found in active hot fumaroles on the
volcano A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are ...
.


See also

*
Fumarole mineral Fumarole minerals are minerals which are deposited by fumarole exhalations. They form when gases and compounds desublimate or precipitate out of condensates, forming mineral deposits. They are mostly associated with volcanoes (as volcanic sublimat ...
* List of volcanoes in Russia


References


External links

* Iturup Active volcanoes Volcanoes of the Kuril Islands Calderas VEI-7 volcanoes {{SakhalinOblast-geo-stub