Vuorokas
iron
Iron is a chemical element; it has symbol Fe () and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, forming much of Earth's o ...
mine was active in
Vuolijoki
Vuolijoki () is a List of former municipalities of Finland, former municipality in Finland. The municipality was consolidated with the city of Kajaani in the beginning of year 2007.
Vuolijoki was located in the provinces of Finland, province of ...
during the years 1965-1985. During this time there were mined 1.348 million tons of ore. The ore contained on average 34%
iron
Iron is a chemical element; it has symbol Fe () and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, forming much of Earth's o ...
, 7.5%
titanium
Titanium is a chemical element; it has symbol Ti and atomic number 22. Found in nature only as an oxide, it can be reduced to produce a lustrous transition metal with a silver color, low density, and high strength, resistant to corrosion in ...
and 0.2%
vanadium
Vanadium is a chemical element; it has Symbol (chemistry), symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an ...
. Together with
Otanmäki mine Vuorokas mine was a major vanadium producer in the world.
References
External links
Publications on Metal Ore Mines in Finland / Vuorokas, Geological Survey of Finland
Iron mines in Finland
Titanium mines in Finland
Vanadium mines in Finland