Cobalt | |
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State | Ontario |
Country | Canada |
Capital | |
Population | 1128 |
Cobalt is a chemical element with the symbol Co and atomic number 27. Like nickel, cobalt is found in the Earth's crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal.
Cobalt-based blue pigments (cobalt blue) have been used since ancient times for jewelry and paints, and to impart a distinctive blue tint to glass, but the color was later thought to be due to the known metal bismuth. Miners had long used the name kobold ore (German for goblin ore) for some of the blue-pigment-producing minerals; they were so named because they were poor in known metals, and gave poisonous arsenic-containing fumes when smelted. In 1735, such ores were found to be reducible to a new metal (the first discovered since ancient times), and this was ultimately named for the kobold.
Today, some cobalt is produced specifically from one of a number of metallic-lustered ores, such as cobaltite (CoAsS). The element is, however, more usually produced as a by-product of copper and nickel mining.
Almere | |
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State | Flevoland |
Country | The Netherlands |
Capital | |
Population | 0 |
Almere (Dutch pronunciation: [ɑlˈmeːrə] (listen)) is a planned city and municipality in the province of Flevoland, Netherlands, bordering Lelystad and Zeewolde. The municipality of Almere comprises six official areas that are the districts of Almere Stad (which is further split up into Almere Stad Oost, Almere Stad West and Almere Centrum), Almere Buiten and Almere Pampus (which is currently being designed), and the boroughs of Almere Haven, Almere Hout and Almere Poort. Four of them feature official district or borough offices. Furthermore, it also comprises the unofficial historic district and neighborhood Oostvaardersdiep, which has an active semi-self-governing community, and the planned district of Almere Oosterwold.
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