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Polyhalite
Polyhalite is an evaporite mineral, a hydrated sulfate of potassium, calcium and magnesium with formula: . Polyhalite crystallizes in the triclinic system, although crystals are very rare. The normal habit is massive to fibrous. It is typically colorless, white to gray, although it may be brick red due to iron oxide inclusions. It has a Mohs hardness of 3.5 and a specific gravity of 2.8. It is used as a fertilizer. Polyhalite was first described in 1818 for specimens from its type locality in Salzburg, Austria. It occurs in sedimentary marine evaporites and is a major potassium ore mineral in the Carlsbad deposits of New Mexico. It is also present as a 2–3% contaminant of Himalayan salt. The only deposit currently being mined lies under North Yorkshire, UK, extending under the adjacent North Sea. Name The name comes from the German ''Polyhalit'', which comes from the Ancient Greek words (''polys'') and ' (''hals''), which mean "many" and "salt", and the German endi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyhalite Crystal Structure
Polyhalite is an evaporite mineral, a hydrated sulfate of potassium, calcium and magnesium with formula: . Polyhalite crystallizes in the triclinic system, although crystals are very rare. The normal habit is massive to fibrous. It is typically colorless, white to gray, although it may be brick red due to iron oxide inclusions. It has a Mohs hardness of 3.5 and a specific gravity of 2.8. It is used as a fertilizer. Polyhalite was first described in 1818 for specimens from its type locality in Salzburg, Austria. It occurs in sedimentary marine evaporites and is a major potassium ore mineral in the Carlsbad deposits of New Mexico. It is also present as a 2–3% contaminant of Himalayan salt. The only deposit currently being mined lies under North Yorkshire, UK, extending under the adjacent North Sea. Name The name comes from the German ''Polyhalit'', which comes from the Ancient Greek words (''polys'') and ' (''hals''), which mean "many" and "salt", and the German ending ''-it' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodsmith Mine
Woodsmith Mine is a deep planned potash and polyhalite mine located near the hamlet of Sneatonthorpe, Whitby in North Yorkshire, England. The venture was started by York Potash Ltd, which became a subsidiary of Sirius Minerals plc whose primary focus was the development of the polyhalite project. The project will mine the world's largest known deposit of polyhalite – a naturally occurring mineral. Because the project would require mining to be undertaken in the North York Moors National Park, many objections were raised to the mine and the proposed underground conveyor that would be installed to transport the raw material offsite to a plant on Teesside away. The mine is expected to have a life of 100 years and has been labelled the biggest mining project in Britain for decades; its twin shafts will be the deepest commercial mineshafts in Britain. The project is expected to generate over £100 billion for the UK economy over a period of 50 years. Once it is functioning it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boulby Mine
The Boulby Mine is an underground mining operation with surface facilities located just south-east of the village of Boulby, on the north-east coast of the North York Moors, east of Loftus, North Yorkshire. It is operated by Cleveland Potash Limited, a subsidiary of Israel Chemicals Ltd., ICL, which acquired the project from Anglo American plc in April 2002. In early 2016, polyhalite mining commenced. Polyhalite is a natural multi-nutrient fertiliser providing a source of potassium, calcium, magnesium, and sulphur. It is marketed as Polysulphate by ICL and is sold in three forms: granular, mini-granular and standard. As well as producing Polysulphate, a granulated blend of potash and Polysulphate is sold as PotashPluS – part of ICL's wider FertiliserPluS product spectrum. Boulby originally produced half of the United Kingdom's output of potash, an agricultural fertiliser. The mined ore consists of 35–45% sylvite ("potash", specifically potassium chloride) and 45–55% hal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polysulphate
ICL Group Ltd. (Hebrew language, Hebrew: איי.סי. אל. גרופ בע"מ) (formerly Israel Chemicals Ltd., ICL) is a multi-national manufacturing concern that develops, produces and markets fertilizers, metals and other special-purpose chemical products. ICL serves primarily three markets: agriculture, food and engineered materials. ICL produces approximately a third of the world's bromine, and is the world's sixth-largest potash producer. It is a manufacturer of specialty fertilizers and specialty phosphates, flame retardants and water treatment solutions. ICL is majority controlled by the Israel Corporation, one of the largest Israeli conglomerates. In addition to the Dead Sea Works, Israel Chemicals mines phosphates in the Negev desert. ICL Group serves customers in Asia. The company's share is a dual stock traded on the Tel Aviv Stock Exchange since 1991 and on the New York Stock Exchange under the symbol ICL, and is part of the TA-35 Index, Tel Aviv 35 Index. Operat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ICL Group Ltd
ICL Group Ltd. (Hebrew: איי.סי. אל. גרופ בע"מ) (formerly Israel Chemicals Ltd., ICL) is a multi-national manufacturing concern that develops, produces and markets fertilizers, metals and other special-purpose chemical products. ICL serves primarily three markets: agriculture, food and engineered materials. ICL produces approximately a third of the world's bromine, and is the world's sixth-largest potash producer. It is a manufacturer of specialty fertilizers and specialty phosphates, flame retardants and water treatment solutions. ICL is majority controlled by the Israel Corporation, one of the largest Israeli conglomerates. In addition to the Dead Sea Works, Israel Chemicals mines phosphates in the Negev desert. ICL Group serves customers in Asia. The company's share is a dual stock traded on the Tel Aviv Stock Exchange since 1991 and on the New York Stock Exchange under the symbol ICL, and is part of the Tel Aviv 35 Index. Operations and business 90% of ICL' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anglo American Plc
Anglo American plc is a British Multinational corporation, multinational mining company with headquarters in London, England. It is the world's largest producer of platinum, with around 40% of world output, as well as being a major producer of diamonds, copper, nickel, iron ore, polyhalite and steelmaking coal. The company has operations in Africa, Asia, Australia, Europe, North America and South America. Anglo American has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. The company has a secondary listing on the JSE Limited, Johannesburg Stock Exchange. In the 2020 Forbes Global 2000, ''Forbes'' Global 2000, Anglo American was ranked as the 274th largest public company in the world. History 1917–1990 Ernest Oppenheimer, a Jewish German émigré, founded the Anglo American Corporation (AAC) in 1917 in Johannesburg, South Africa, with financial backing from the American bank J.P. Morgan & Co. and £1 million raised from UK and US ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sirius Minerals
Sirius Minerals plc was a fertilizer development company based in the United Kingdom. It was listed on the London Stock Exchange until it was acquired by Anglo American in March 2020. History Founded in 2003, the company initially focused on exploring the potential for potash mining in North Dakota. However, after abandoning attempts at overseas exploration in February 2012 and following approval from the North York Moors National Park Authority in June 2015, the then AIM-listed company stated that it would seek financing in order to begin construction at the Woodsmith Mine in North Yorkshire North Yorkshire is a Ceremonial counties of England, ceremonial county in Northern England.The Unitary authorities of England, unitary authority areas of City of York, York and North Yorkshire (district), North Yorkshire are in Yorkshire and t .... It was admitted to the main market in April 2017. In September 2019, the Woodsmith Mine project was in doubt when the company she ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potassium
Potassium is a chemical element; it has Symbol (chemistry), symbol K (from Neo-Latin ) and atomic number19. It is a silvery white metal that is soft enough to easily cut with a knife. Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure. It was first isolated from potash, the ashes of plants, from which its name derives. In the periodic table, potassium is one of the alkali metals, all of which have a single valence electron in the outer electron shell, which is easily removed to create cation, an ion with a positive charge (which combines with anions to form salts). In nature, potassium occurs only in ionic salts. Elemental potassium reacts vigorously with water, generating sufficient heat to ignite hydrogen emitted in the reaction, and burning with a lilac-flame color, colored flame. It is found dissolved in seawater (which is 0.04% potassium by weight), and occurs in many minerals such as orthoclase, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evaporite
An evaporite () is a water- soluble sedimentary mineral deposit that results from concentration and crystallization by evaporation from an aqueous solution. There are two types of evaporite deposits: marine, which can also be described as ocean deposits, and non-marine, which are found in standing bodies of water such as lakes. Evaporites are considered sedimentary rocks and are formed by chemical sediments. Formation Although all water bodies on the surface and in aquifers contain dissolved salts, the water must evaporate into the atmosphere for the minerals to precipitate. For this to happen, the water body must enter a restricted environment where water input into this environment remains below the net rate of evaporation. This is usually an arid environment with a small drainage basin fed by a limited input of water. When evaporation occurs, the remaining water is enriched in salts, and they precipitate after the water becomes saturated. Depositional environments ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syngenite
Syngenite is an uncommon potassium calcium sulfate mineral with formula K2Ca(SO4)2·H2O. It forms as prismatic monoclinic crystals and as encrustations. Discovery and occurrence It was first described in 1872 for an occurrence as druse on halite in the Kalusa Salt deposit, Ivanovo-Frankovsk Oblast', Ukraine. The name is from Greek 'συγγενής' (''related'') due to its chemical similarity to polyhalite. It occurs in marine evaporite deposits as a diagenetic phase. It also forms as a volcanic sublimate, as vein fillings in geothermal fields and in caves where it is derived from bat guano. It occurs in association with halite and arcanite in salt deposits; and with biphosphammite, aphthitalite, monetite, whitlockite, uricite, brushite and gypsum in cave environments. It is also found in hardened cement which has relatively higher amount of potassium. Production Syngenite can be artificially produced by the action of a potassium sulfate solution on gypsum Gyps ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Mexico
New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also borders the state of Texas to the east and southeast, Oklahoma to the northeast, and shares Mexico-United States border, an international border with the Mexican states of Chihuahua (state), Chihuahua and Sonora to the south. New Mexico's largest city is Albuquerque, and its List of capitals in the United States, state capital is Santa Fe, New Mexico, Santa Fe, the oldest state capital in the U.S., founded in 1610 as the government seat of Santa Fe de Nuevo México, Nuevo México in New Spain. It also has the highest elevation of any state capital, at . New Mexico is the List of U.S. states and territories by area, fifth-largest of the fifty states by area, but with just over 2.1 million residents, ranks List of U.S. states and terri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Sea
The North Sea lies between Great Britain, Denmark, Norway, Germany, the Netherlands, Belgium, and France. A sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian Sea in the north. It is more than long and wide, covering . It hosts key north European shipping lanes and is a major fishery. The coast is a popular destination for recreation and tourism in bordering countries, and a rich source of energy resources, including wind energy, wind and wave power. The North Sea has featured prominently in geopolitical and military affairs, particularly in Northern Europe, from the Middle Ages to the modern era. It was also important globally through the power northern Europeans projected worldwide during much of the Middle Ages and into the modern era. The North Sea was the centre of the Viking Age, Vikings' rise. The Hanseatic League, the Dutch Golden Age, Dutch Republic, and Kingdom of Great Britain, Brita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
