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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 occurs in sedimentary marine evaporites and is a major potassium ore mineral in the Carlsbad deposits of New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker .... It is also present as a 2–3% contaminant of Himalayan salt. Polyhalite was first described in 1818 for specimens from its type locality in Salzburg, Austria. The name comes from the German ''Polyhalit'', which comes from the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anhydrite
Anhydrite, or anhydrous calcium sulfate, is a mineral with the chemical formula CaSO4. It is in the orthorhombic crystal system, with three directions of perfect cleavage parallel to the three planes of symmetry. It is not isomorphous with the orthorhombic barium ( baryte) and strontium ( celestine) sulfates, as might be expected from the chemical formulas. Distinctly developed crystals are somewhat rare, the mineral usually presenting the form of cleavage masses. The Mohs hardness is 3.5, and the specific gravity is 2.9. The color is white, sometimes greyish, bluish, or purple. On the best developed of the three cleavages, the lustre is pearly; on other surfaces it is glassy. When exposed to water, anhydrite readily transforms to the more commonly occurring gypsum, (CaSO4·2H2O) by the absorption of water. This transformation is reversible, with gypsum or calcium sulfate hemihydrate forming anhydrite by heating to around under normal atmospheric conditions. Anhydrite is comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Himalayan Salt
Himalayan salt is rock salt (halite) mined from the Punjab region of Pakistan. The salt, which often has a pinkish tint due to trace minerals, is primarily used as a food additive to replace refined table salt but is also used for cooking and food presentation, decorative lamps and spa treatments. The product is often promoted with unsupported claims that it has health benefits. Geology Himalayan salt is mined from the Salt Range mountains, the southern edge of a fold-and-thrust belt that underlies the Pothohar Plateau south of the Himalayas in Pakistan. Himalayan salt comes from a thick layer of Ediacaran to early Cambrian evaporites of the ''Salt Range Formation''. This geological formation consists of crystalline halite intercalated with potash salts, overlain by gypsiferous marl and interlayered with beds of gypsum and dolomite with infrequent seams of oil shale that accumulated between 600 and 540 million years ago. These strata and the overlying Cambrian to Eocene sedim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anglo American Plc
Anglo American plc is a British listed 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 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 Johannesburg Stock Exchange. In the 2020 Forbes Global 2000, Anglo American was ranked as the 274th -largest public company in the world. History 1917–1990 Sir 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 sources to start the gold mining company; this fact is refle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodsmith Mine
Woodsmith Mine is a deep potash and polyhalite mine located near to 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 is the development of the polyhalite project. The project will mine the world's largest 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 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 will be the deepest min ... [...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. It was admitted to the main market in April 2017. In September 2019 the Woodsmith Mine project was in doubt when the company shelved a £400 million junk bond sale, citing a lack of government support and Brexit uncertainty. In November 2019 the company announced that it was in talks with potential investors to raise $600 million needed to fund the first phase of the development. In J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polysulphate
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. Operations and business 90% of ICL's sales are exports. Through its subsidiaries, ICL produces 35% of world's bromine, 13% of the world's potash (excluding US-Canada cross-border trade), 9% of the western world's mag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Israel Chemicals
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. Operations and business 90% of ICL's sales are exports. Through its subsidiaries, ICL produces 35% of world's bromine, 13% of the world's potash (excluding US-Canada cross-border trade), 9% of the western world's mag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potash
Potash () includes various mined and manufactured salts that contain potassium in water-soluble form.Potash USGS 2008 Minerals Yearbook The name derives from ''pot ash'', plant ashes or soaked in water in a pot, the primary means of manufacturing potash before the . The word '''' is derived from ''potash''. Potash is produced worldwide in amounts exceeding 90 million |
North Yorkshire
North Yorkshire is the largest ceremonial counties of England, ceremonial county (lieutenancy area) in England, covering an area of . Around 40% of the county is covered by National parks of the United Kingdom, national parks, including most of the Yorkshire Dales and the North York Moors. It is one of four counties in England to hold the name Yorkshire; the three other counties are the East Riding of Yorkshire, South Yorkshire and West Yorkshire. North Yorkshire may also refer to a non-metropolitan county, which covers most of the ceremonial county's area () and population (a mid-2016 estimate by the Office for National Statistics, ONS of 602,300), and is administered by North Yorkshire County Council. The non-metropolitan county does not include four areas of the ceremonial county: the City of York, Middlesbrough, Redcar and Cleveland and the southern part of the Borough of Stockton-on-Tees, which are all administered by Unitary authorities of England, unitary authorities. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Sea
The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric 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 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 Vikings' rise. The Hanseatic League, the Dutch Republic, and the British each sought to gain command of the North Sea and access t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salt (chemistry)
In chemistry, a salt is a chemical compound consisting of an ionic assembly of positively charged cations and negatively charged anions, which results in a compound with no net electric charge. A common example is table salt, with positively charged sodium ions and negatively charged chloride ions. The component ions in a salt compound can be either inorganic, such as chloride (Cl−), or organic, such as acetate (). Each ion can be either monatomic, such as fluoride (F−), or polyatomic, such as sulfate (). Types of salt Salts can be classified in a variety of ways. Salts that produce hydroxide ions when dissolved in water are called ''alkali salts'' and salts that produce hydrogen ions when dissolved in water are called ''acid salts''. ''Neutral salts'' are those salts that are neither acidic nor basic. Zwitterions contain an anionic and a cationic centre in the same molecule, but are not considered salts. Examples of zwitterions are amino acids, many metabolites, peptid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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