|
Hüttenstollen Osterwald
The Hüttenstollen, also Straßberger Hüttenstollen, was the central drainage adit in the Straßberg mining field and was also part of the Lower Harz Pond and Ditch System in the Harz Mountains of Germany. The adit lies at a depth of 50 m and is 750 m long. The pit water was drained into the Selke. The drainage ditches were the Straßberger ''Flösse'' and the ''Stollgraben''. History The construction of a deep adit had begun before 1696. The aim was to provide ventilation for the pits at Straßberg: the ''Segen Gottes'', ''Hilfe Gottes'', ''Gott hilft gewiß'' and '' Vertrau auf Gott'' (later, the Glasebach Pit). Georg Christoph von Utterodt, who came from Ilmenau, took over the running of the Straßberg mines in 1701. In the years that followed the adit was driven out from the Selke valley. Under Christian Zacharias Koch the adit, which had since been named the Hüttenstollen was further extended in 1720. By linking it to the main adit (''Hauptstollen'') south of Straßbe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adit
An adit (from Latin ''aditus'', entrance) is an entrance to an underground mine which is horizontal or nearly horizontal, by which the mine can be entered, drained of water, ventilated, and minerals extracted at the lowest convenient level. Adits are also used to explore for mineral veins. Construction Adits are driven into the side of a hill or mountain, and are often used when an ore body is located inside the mountain but above the adjacent valley floor or coastal plain. In cases where the mineral vein outcrops at the surface, the adit may follow the lode or vein until it is worked out, in which case the adit is rarely straight. The use of adits for the extraction of ore is generally called drift mining. Adits can only be driven into a mine where the local topography permits. There will be no opportunity to drive an adit to a mine situated on a large flat plain, for instance. Also if the ground is weak, the cost of shoring up a long adit may outweigh its possible advantage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classified as gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia. Quartz is the mineral defining the val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harzgerode
Harzgerode is a town in the district of Harz in Saxony-Anhalt, Germany. Geography Harzgerode lies in the lower eastern part of the Harz mountain range on the Selke River, south of Quedlinburg. It is connected to Gernrode and Quedlinburg via Alexisbad by a narrow gauge railway called the Selke Valley Railway (''Selketalbahn''). The municipal area comprises the following 8 localities (''Ortschaften''), some of which consist of several divisions (''Ortsteile''):Hauptsatzung der Stadt Harzgerode August 2019. * * ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining In The Harz
Mining in the Upper Harz region of central Germany was a major industry for several centuries, especially for the production of silver, lead, copper, and, latterly, zinc as well. Great wealth was accumulated from the mining of silver from the 16th to the 19th centuries, as well as from important technical inventions. The centre of the mining industry was the group of seven Upper Harz mining towns of Clausthal, Zellerfeld, Sankt Andreasberg, Wildemann, Grund, Lautenthal und Altenau. History The Upper Harz was once one of the most important mining regions in Germany. The major products of its mines were silver, copper, lead, iron and, from the 19th century, zinc as well. The main source of income, however, was silver. From the 16th to the middle of the 19th centuries about 40–50% of the entire German silver production originated in the Upper Harz. The taxes raised from this contributed significantly to the revenue of the royal houses in Hanover and Brunswick-Wolfenbüttel and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mines In The Harz
This list contains an overview of the mines in the Harz Mountains of central Germany, formerly one of the most productive mining regions in the world. Bad Grund * Grund Ore Mine Bad Harzburg * Hansa Iron Ore Mine Pit, Göttingerode * Friederike Iron Ore Mine Pit Bad Lauterberg * Wolkenhügel Pit, Bad Lauterberg (closed 2007) Hahnenklee Hahnenklee Field * ''August Gallery'' * ''Aufcontainingtigkeit Pit'', 1741 - 1761, 42 m depth, probably silver ore * '' Pit Beständigkeit Pit'', 1739 - 1816 (1828), 90 m depth, silver-containing galena * ''Herzogin Philipina Charlotte Pit'', 1745 - 1802, probably silver-containing galena * ''Johann Georg Pit'', 1748 - 1754, probably silver-containing galena * ''Morgenröte Pit'', 1679 - 1684, probably silver ore * ''St. Edmund Pit'' (upper and lower), 1620 - 1739 (1828), 70 m depth, probably silver ore * '' Pit Theodora'', ab 1816 ''Theodora and Beständigkeit'', 1741 - 1828, 90 m depth, silver-containing galena * ''Lautenthaler ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dennert Fir Tree
The Dennert Fir Tree (german: Dennert-Tanne also known as the , or ) is a signboard that is used throughout the Harz mountains in Germany to provide information about mining and other points of interest in the area. The signboards mark locations, traces and monuments to mining, to the Upper Harz Water Regale, a medieval water management system, or even personalities in mining history in the Upper Harz mining area. They have since become used to document other notable sites within the Harz. The first Dennert Fir Tree was set up on 9 October 1949 in the vicinity of the former Sarepta Pit () in Clausthal. It was sponsored by the Power and Water Management Division () of Preussag AG, the operator of the Upper Harz Water Regalem at that time. The instigator was Herbert Dennert (1902–1994). Dennert promoted the preservation of mining monuments and published several books about mining in the Upper Harz. The signs measure , are mainly made of wood and have the characteristic sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galena
Galena, also called lead glance, is the natural mineral form of lead(II) sulfide (PbS). It is the most important ore of lead and an important source of silver. Galena is one of the most abundant and widely distributed sulfide minerals. It crystallizes in the cubic crystal system often showing octahedral forms. It is often associated with the minerals sphalerite, calcite and fluorite. Occurrence Galena is the main ore of lead, used since ancient times, since lead can be smelted from galena in an ordinary wood fire. Galena typically is found in hydrothermal veins in association with sphalerite, marcasite, chalcopyrite, cerussite, anglesite, dolomite, calcite, quartz, barite, and fluorite. It is also found in association with sphalerite in low-temperature lead-zinc deposits within limestone beds. Minor amounts are found in contact metamorphic zones, in pegmatites, and disseminated in sedimentary rock. In some deposits the galena contains up to 0.5% silver, a byproduct that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcite
Calcite is a Carbonate minerals, carbonate mineral and the most stable Polymorphism (materials science), polymorph of calcium carbonate (CaCO3). It is a very common mineral, particularly as a component of limestone. Calcite defines hardness 3 on the Mohs scale of mineral hardness, based on Scratch hardness, scratch hardness comparison. Large calcite crystals are used in optical equipment, and limestone composed mostly of calcite has numerous uses. Other polymorphs of calcium carbonate are the minerals aragonite and vaterite. Aragonite will change to calcite over timescales of days or less at temperatures exceeding 300 °C, and vaterite is even less stable. Etymology Calcite is derived from the German ''Calcit'', a term from the 19th century that came from the Latin word for Lime (material), lime, ''calx'' (genitive calcis) with the suffix "-ite" used to name minerals. It is thus etymologically related to chalk. When applied by archaeology, archaeologists and stone trade pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Straßberg (Harz)
{{disambiguation, geo ...
Straßberg may refer to: Places in Germany *Straßberg, Saxony-Anhalt, a town in the district of Harz of Saxony-Anhalt * Straßberg, Zollernalbkreis, a town in the Zollernalbkreis of Baden-Württemberg *Straßberg, one of the communities amalgamated to form Bobingen, Bavaria, in 1972 Other uses *Straßberg, one of the Castles in South Tyrol * ''Funkgerät (FuG 230) Straßburg'', one of two receivers in the Kehl-Strasbourg radio control link, a German MCLOS radio control system of World War II See also * Josef Straßberger, German weightlifter * Strasburg (other) * Strasberg Strasberg is a surname. Notable persons with this name include: * Susan Strasberg (1938–1999), American stage, film, and television actress, daughter of Lee and Paula *Lee Strasberg (1901–1982), Polish-born American actor, director, and theatr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ilmenau
Ilmenau () is a town in Thuringia, central Germany. It is the largest town within the Ilm district with a population of 38,600, while the district capital is Arnstadt. Ilmenau is located approximately south of Erfurt and north of Nuremberg within the Ilm valley at the northern edge of the Thuringian Forest at an elevation of . The most important institution in Ilmenau is the Technische Universität Ilmenau, a public research university and Thuringia's only "Technical University" with about 4,900 students and an emphasis on engineering disciplines, computer science, mathematics, natural sciences, economics, and media studies. Its precursor was founded in 1894 and developed into a university in 1992. Since 1990, many research institutes have been established in the vicinity making Ilmenau an important hub of technological research. Ilmenau was historically a small mining town, primarily silver, copper and manganese, until the deposits were depleted. After 1800, it was one of J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glasebach Pit
The Glasebach Pit (german: Grube Glasebach) is a mining museum and former pit in the Harz fluorspar mining area near Straßberg in the German state of Saxony-Anhalt. It is run by the East Harz Mining Society (''Montanverein Ostharz e. V.''). The pit was founded under the name of ''Vertrau auf Gott'' ("Trust in God"). The mining industry in the area around Straßberg goes back to the time around the year 1400. At Heidelberg north of Straßberg, fluorite and silver were won and processed at a smeltery on the site on behalf of the counts of Stolberg. There was also flourishing mining activity on the Glasebach stream, which formed the boundary between the County of Stolberg and the Principality of Anhalt-Bernburg. After being abandoned for a while, mining restarted in the 18th century and continued, with interruptions, until the 1960s. Various mining artefacts are displayed in the museum, including the old wooden drainage outlet (''Grundablass'') of the Lower Kilian Dam (o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Adit")
_b_474.jpg "Click for more on -> Ilmenau")
