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Montanregion Erzgebirge
The Ore Mountain Mining Region (officially Erzgebirge/Krušnohoří Mining Region; german: Montanregion Erzgebirge, cs, Montanregion Krušné hory) is an industrial heritage landscape, over 800 years old, in the border region of the Ore Mountains between the German state of Saxony and North Bohemia in the Czech Republic. It is characterised by a plethora of historic, largely original, monuments to technology, as well as numerous individual monuments and collections related to the historic mining industry of the region. On 6 July 2019, the Erzgebirge/Krušnohoří Mining Region was inscribed as a UNESCO World Heritage Site, because of its exceptional testimony to the advancement of mining technology over the past 800 years. Description The Ore Mountain Mining Region is a region roughly long and wide, on the border of Germany and the Czech Republic, containing a large density of historical mining sites and monuments. The World Heritage Site comprises 22 of these sites (17 in Ger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Altenberg, Saxony
Altenberg () is a town in the Sächsische Schweiz-Osterzgebirge district, in Saxony, Germany. Geography The town is situated in the Ore Mountains, 32 km south of Dresden, and 15 km northwest of Teplice, Czech Republic. The village of Zinnwald-Georgenfeld registered the lowest annual mean temperature (4.9 °C) of all inhabited places in Germany during the period 1961–1990. Additionally, it also holds the German record for the highest amount of precipitation recorded in one day, 312 mm. The highest snow depth ever recorded was 163 cm in 2005. Municipal divisions The town Altenberg consists of the following ''Ortschaften'' or municipal divisions:Hauptsatzung der Stadt Altenberg § 18, June 2021. *Altenberg (incl. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krupka
Krupka (; german: Graupen) is a town in Teplice District in the Ústí nad Labem Region of the Czech Republic. It has about 12,000 inhabitants. The town is located in the Ore Mountain Mining Region, an UNESCO World Heritage Site, and during the late Middle Ages it was one of the world-leading producers of tin and silver. The centre of Krupka is well preserved and is protected by law as an urban monument zone. Administrative parts Town parts and villages of Bohosudov, Fojtovice, Horní Krupka, Maršov, Nové Modlany, Soběchleby, Unčín and Vrchoslav are administrative parts of Krupka. Etymology The name "Krupka" was derived from an Old-Czech word ''krupý'', which approximately means "large". Geography Krupka is located about north of Teplice and east of Ústí nad Labem. The southern part of the municipal territory with the built-up area lies the Most Basin, the northern part lies in the Ore Mountains. On the southern border of Krupka there is the Kateřina Reservoir, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johanngeorgenstadt
Johanngeorgenstadt () is a mining town in Saxony’s Ore Mountains, 17 km south of Aue, and 27 km northwest of Karlovy Vary. It lies in the district of Erzgebirgskreis, on the border with the Czech Republic, is a state-recognized health resort (''Erholungsort''), and calls itself ''Stadt des Schwibbogens'' (“Schwibbogen Town”). Its population decline since the 1950s has been extremely severe falling from 45,000 residents in 1953 to only about one tenth of that now. Geography Location The town stretches predominantly from the eastern ridge of the almost 900-m-high Fastenberg to where the Breitenbach, which forms part of the border with the Czech Republic, empties into the river Schwarzwasser. The nearest high mountains to the town are the 1019-m-high Auersberg, the 1043-m-high Blatenský vrch (in the Czech Republic) and the 913-m-high Rabenberg. Neighbouring communities Communities in Aue-Schwarzenberg bordering on Johanngeorgenstadt are Breitenbrunn, Eibens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olbernhau
Olbernhau is a town in the district Erzgebirgskreis, in Saxony, Germany. It is situated in the Ore Mountains, 35 km southeast of Chemnitz, and 23 km north of Chomutov, Czech Republic. History Presumably, the town's name arose from the old German name Albert (Albernhaw, Alberthau, Albernhau, Albretshain). Olbernhau has its origins back in the 13th century. Encouraged by Archbishop Albert I. of Meissen, the so-called White Monks ( Cistercians) from Osek founded the first settlement in the upper Flöha valley, shortly after ore was found here. Olbernhau was first mentioned in records in 1434 (as "Albernaw") in a contract documenting the sale of Olbernhau to the patritian Caspar von Berbisdorf. Ore mining started in 1511. In the course of the Protestant reformation Olbernhau became a parish in 1539. A school is mentioned for the first time in 1556. The solidly built church was consecrated in 1590. About 1684 the industrial art of gunsmithing was introduced in Olbernha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brand-Erbisdorf
Brand-Erbisdorf () is a small town in the district of Mittelsachsen, in Saxony, Germany. It is situated 5 km south of Freiberg. As of 2020, the town has a population of 9,145. History The town is first mentioned in 1209 as ''Erlwinesberc'', although it is suggested that it was founded earlier, in the middle of the 12th century. The long tradition of silver mining around the town came to an end in the beginning of the 20th century. It was only after 1945 that the mining industry reappeared to a limited extent, before finally closing in 1968. From 1900 onwards, various other industries began to take hold in the town, slowly replacing mining as the primary industry. Of these were most notably the wood industry originating from the Ore Mountains and the "Elite-Werke". Personalities * Grete Beier (1885-1908), daughter of the then mayor of Brand, was the last person to be publicly executed in Saxony for murder * Günter Wirth (1929-2009), university lecturer for church histo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithium
Lithium (from el, λίθος, lithos, lit=stone) is a chemical element with the symbol Li and atomic number 3. It is a soft, silvery-white alkali metal. Under standard conditions, it is the least dense metal and the least dense solid element. Like all alkali metals, lithium is highly reactive and flammable, and must be stored in vacuum, inert atmosphere, or inert liquid such as purified kerosene or mineral oil. When cut, it exhibits a metallic luster, but moist air corrodes it quickly to a dull silvery gray, then black tarnish. It never occurs freely in nature, but only in (usually ionic) compounds, such as pegmatitic minerals, which were once the main source of lithium. Due to its solubility as an ion, it is present in ocean water and is commonly obtained from brines. Lithium metal is isolated electrolytically from a mixture of lithium chloride and potassium chloride. The nucleus of the lithium atom verges on instability, since the two stable lithium isotopes foun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tungsten
Tungsten, or wolfram, is a chemical element with the symbol W and atomic number 74. Tungsten is a rare metal found naturally on Earth almost exclusively as compounds with other elements. It was identified as a new element in 1781 and first isolated as a metal in 1783. Its important ores include scheelite and wolframite, the latter lending the element its alternate name. The free element is remarkable for its robustness, especially the fact that it has the highest melting point of all known elements barring carbon (which sublimes at normal pressure), melting at . It also has the highest boiling point, at . Its density is , comparable with that of uranium and gold, and much higher (about 1.7 times) than that of lead. Polycrystalline tungsten is an intrinsically brittle and hard material (under standard conditions, when uncombined), making it difficult to work. However, pure single-crystalline tungsten is more ductile and can be cut with a hard-steel hacksaw. Tungsten occurs in many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indium
Indium is a chemical element with the symbol In and atomic number 49. Indium is the softest metal that is not an alkali metal. It is a silvery-white metal that resembles tin in appearance. It is a post-transition metal that makes up 0.21 parts per million of the Earth's crust. Indium has a melting point higher than sodium and gallium, but lower than lithium and tin. Chemically, indium is similar to gallium and thallium, and it is largely intermediate between the two in terms of its properties. Indium was discovered in 1863 by Ferdinand Reich and Hieronymous Theodor Richter by spectroscopic methods. They named it for the indigo blue line in its spectrum. Indium was isolated the next year. Indium is a minor component in zinc sulfide ores and is produced as a byproduct of zinc refinement. It is most notably used in the semiconductor industry, in low-melting-point metal alloys such as solders, in soft-metal high-vacuum seals, and in the production of transparent conductive coati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. In nature, uranium is found as uranium-238 (99. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthracite
Anthracite, also known as hard coal, and black coal, is a hard, compact variety of coal that has a submetallic luster. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coals. Anthracite is the most metamorphosed type of coal (but still represents low-grade metamorphism), in which the carbon content is between 86% and 97%. The term is applied to those varieties of coal which do not give off tarry or other hydrocarbon vapours when heated below their point of ignition. Anthracite ignites with difficulty and burns with a short, blue, and smokeless flame. Anthracite is categorized into standard grade, which is used mainly in power generation, high grade (HG) and ultra high grade (UHG), the principal uses of which are in the metallurgy sector. Anthracite accounts for about 1% of global coal reserves, and is mined in only a few countries around the world. The Coal Region of northeastern Pen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cobalt
Cobalt is a chemical element with the symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a 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 for a long time 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercury (element)
Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver and was formerly named hydrargyrum ( ) from the Greek words, ''hydor'' (water) and ''argyros'' (silver). A heavy, silvery d-block A block of the periodic table is a set of elements unified by the atomic orbitals their valence electrons or vacancies lie in. The term appears to have been first used by Charles Janet. Each block is named after its characteristic orbital: s-blo ... element, mercury is the only metallic element that is known to be liquid at standard temperature and pressure; the only other element that is liquid under these conditions is the halogen bromine, though metals such as caesium, gallium, and rubidium melt just above room temperature. Mercury occurs in deposits throughout the world mostly as cinnabar (mercuric sulfide). The red pigment vermilion is obtained by Mill (grinding), grinding natural cinnabar or synthetic mercuric sulfide. Mercury is used in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
