Rhenium is a chemical element with the symbol Re and atomic number 75. It is a silvery-gray, heavy, third-row transition metal in group 7 of the periodic table. With an estimated average concentration of 1 part per billion (ppb), rhenium is one of the rarest elements in the Earth's crust. Rhenium has the third-highest melting point and highest boiling point of any stable element at 5869 K. Rhenium resembles manganese and technetium chemically and is mainly obtained as a by-product of the extraction and refinement of molybdenum and copper ores. Rhenium shows in its compounds a wide variety of oxidation states ranging from −1 to +7.
Tantalum is a chemical element with the symbol Ta and atomic number 73. Previously known as tantalium, it is named after Tantalus, a villain from Greek mythology. Tantalum is a rare, soft when pure, blue-gray, lustrous transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as minor components in alloys.
Pyhäjärvi is a town and municipality in the south of Northern Ostrobothnia region, Finland. Pyhäjärvi also borders the Northern Savonia and Central Finland regions. The town belongs to the subregion of Nivala–Haapajärvi. Its seat is in Pyhäsalmi.
Molybdenite is a mineral of molybdenum disulfide, MoS2. Similar in appearance and feel to graphite, molybdenite has a lubricating effect that is a consequence of its layered structure. The atomic structure consists of a sheet of molybdenum atoms sandwiched between sheets of sulfur atoms. The Mo-S bonds are strong, but the interaction between the sulfur atoms at the top and bottom of separate sandwich-like tri-layers is weak, resulting in easy slippage as well as cleavage planes. Molybdenite crystallizes in the hexagonal crystal system as the common polytype 2H and also in the trigonal system as the 3R polytype.
Group 7, numbered by IUPAC nomenclature, is a group of elements in the periodic table. They are manganese (Mn), technetium (Tc), rhenium (Re), and bohrium (Bh). All known elements of group 7 are transition metals.
The Finnish nickel deposits were found in the Petsamo area near the Barents Sea. Until the Paris Peace Treaties, 1947, this was the northernmost part of Finland. In 1934 it was estimated that the deposits contained over five million tons of nickel. In 1935, Canadian and French corporations began mining operations there.
Haapajärvi is a town and municipality of Finland.
Nivala is a town and municipality of Finland. It is located in the Northern Ostrobothnia region. The town has a population of 10,397 (31 December 2021) and covers an area of 536.88 square kilometres (207.29 sq mi) of which 8.92 km2 (3.44 sq mi) is water. The population density is 19.69 inhabitants per square kilometre (51.0/sq mi). The municipality is unilingually Finnish.
First Quantum Minerals is a Canadian-based mining and metals company whose principal activities include mineral exploration, development and mining. Its main product is copper, which accounts for 80% of revenues as of 2016.
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.
A native metal is any metal that is found pure in its metallic form in nature. Metals that can be found as native deposits singly or in alloys include aluminium, antimony, arsenic, bismuth, cadmium, chromium, cobalt, indium, iron, manganese, molybdenum, nickel, niobium, rhenium, selenium, tantalum, tellurium, tin, titanium, tungsten, vanadium, and zinc, as well as the gold group and the platinum group. Among the alloys found in native state have been brass, bronze, pewter, German silver, osmiridium, electrum, white gold, silver-mercury amalgam, and gold-mercury amalgam.
Medvezhya (Russian: Медве́жий; Japanese: 茂世路岳, Moyoro-dake) is a volcanic complex located at the northern end of Iturup Island, Kuril Islands, Russia. Rheniite, a rhenium sulfide mineral (ReS2), was discovered and approved in 2004. It is found in active hot fumaroles on the volcano.
2. Divisioona is the fourth highest level of ice hockey in Finland. Teams playing in 2. Divisioona can be relegated to 3. Divisioona or promoted to Suomi-sarja. From 1975 to 1999, 2. Divisioona was the third highest level of ice hockey in Finland before being replaced by Suomi-sarja.
Mining in the United States has been active since the beginning of colonial times, but became a major industry in the 19th century with a number of new mineral discoveries causing a series of mining rushes. In 2015, the value of coal, metals, and industrial minerals mined in the United States was US $109.6 billion. 158,000 workers were directly employed by the mining industry.
Rockland the Opera, commissioned by the Pine Mountain Music Festival (PMMF), is a historically based tragic opera in 14 scenes composed and written by Jukka Linkola of Nivala, Finland, first performed in 2011. It is based on a long-forgotten miners' strike at the town of Rockland in Upper Peninsula of Michigan's Ontonagon County. Striking Finnish miners were confronted by sheriff's deputies and two miners were shot and killed.
Olli Immonen is a member of the Finnish Parliament for the Finns Party and a former chairman of the nationalist organization Suomen Sisu.
The geology of Finland is made up of a mix of geologically very young and very old materials. Common rock types are orthogneiss, granite, metavolcanics and metasedimentary rocks. On top of these lies a widespread thin layer of unconsolidated deposits formed in connection to the Quaternary ice ages, for example eskers, till and marine clay. The topographic relief is rather subdued because mountain massifs were worn down to a peneplain long ago.
Eija Hannele Nivala is a Finnish priest and politician, formerly representing the Centre Party in the parliament of Finland.
Kerttu Saalasti was a Finnish politician who was the Finland Minister of Education from 1954 to 1956 and from May 1957 to November 1957. She was the first female Minister of Education in Finland, and introduced the legislation that established the University of Oulu. A member of the Agrarian League, Saalasti also represented Oulu in the Parliament of Finland from 1948 to 1962 and from 1966 to 1970.
Katariina "Kaisa" Kallio was a Finnish homemaker who was the spouse of the president of Finland from 1937 to 1940. She was married to Kyösti Kallio, the fourth president of Finland.
