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Witherite
Witherite is a barium carbonate mineral, Ba C O3, in the aragonite group. Witherite crystallizes in the orthorhombic system and virtually always is twinned. The mineral is colorless, milky-white, grey, pale-yellow, green, to pale-brown. The specific gravity is 4.3, which is high for a translucent mineral. It fluoresces light blue under both long- and short-wave UV light, and is phosphorescent under short-wave UV light. Witherite forms in low-temperature hydrothermal environments. It is commonly associated with fluorite, celestine, galena, barite, calcite, and aragonite. Witherite occurrences include: Cave-in-Rock, Illinois, US; Pigeon Roost Mine, Glenwood, Arkansas, US; Settlingstones Mine Northumberland; Alston Moor, Cumbria; Anglezarke, Lancashire and Burnhope, County Durham, England; Thunder Bay area, Ontario, Canada, Germany, and Poland ( Tarnowskie Góry and Tajno at Suwałki Region). Witherite was named after William Withering (1741–1799) an English physician ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbonate Mineral
Carbonate minerals are those minerals containing the carbonate ion, . Carbonate divisions Anhydrous carbonates *Calcite group: trigonal **Calcite CaCO3 **Gaspéite (Ni,Mg,Fe2+)CO3 **Magnesite MgCO3 **Otavite CdCO3 **Rhodochrosite MnCO3 **Siderite FeCO3 **Smithsonite ZnCO3 **Spherocobaltite CoCO3 *Aragonite group: orthorhombic **Aragonite CaCO3 **Cerussite PbCO3 **Strontianite SrCO3 **Witherite BaCO3 **Rutherfordine UO2CO3 **Natrite Na2CO3 Anhydrous carbonates with compound formulas *Dolomite group: trigonal **Ankerite CaFe(CO3)2 **Dolomite (mineral), Dolomite CaMg(CO3)2 **Huntite Mg3Ca(CO3)4 **Minrecordite CaZn(CO3)2 **Barytocalcite BaCa(CO3)2 Carbonates with hydroxyl or halogen *Carbonate with hydroxide: monoclinic **Azurite Cu3(CO3)2(OH)2 **Hydrocerussite Pb3(CO3)2(OH)2 **Malachite Cu2CO3(OH)2 **Rosasite (Cu,Zn)2CO3(OH)2 **Phosgenite Pb2(CO3)Cl2 **Hydrozincite Zn5(CO3)2(OH)6 **Aurichalcite (Zn,Cu)5(CO3)2(OH)6 Hydrated carbonates *Hydromagnesite Mg5(CO3)4(OH)2.4H2O *Ikaite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barium Carbonate
Barium carbonate is the inorganic compound with the formula BaCO3. Like most alkaline earth metal carbonates, it is a white salt that is poorly soluble in water. It occurs as the mineral known as witherite. In a commercial sense, it is one of the most important barium compounds. Preparation Barium carbonate is made commercially from barium sulfide by treatment with sodium carbonate at 60 to 70 °C ( soda ash method) or, more commonly carbon dioxide at 40 to 90 °C: In the soda ash process, an aqueous solution of barium sulfide is treated with sodium carbonate: : Reactions Barium carbonate reacts with acids such as hydrochloric acid to form soluble barium salts, such as barium chloride: : Pyrolysis of barium carbonate gives barium oxide. Uses It is mainly used to remove sulfate impurities from feedstock of the chlor-alkali process. Otherwise it is a common precursor to barium-containing compounds such as ferrites. Other uses Barium carbonate is widely used in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celestine (mineral)
Celestine (the IMA-accepted name) or celestite is a mineral consisting of strontium sulfate ( Sr S O). The mineral is named for its occasional delicate blue color. Celestine and the carbonate mineral strontianite are the principal sources of the element strontium, commonly used in fireworks and in various metal alloys. Etymology Celestine derives its name from the Latin word ''caelestis'' meaning celestial which in turn is derived from the Latin word ''caelum'' meaning sky, air, weather, atmosphere and heaven. Occurrence Celestine occurs as crystals, and also in compact massive and fibrous forms. It is mostly found in sedimentary rocks, often associated with the minerals gypsum, anhydrite, and halite. On occasion in some localities, it may also be found with sulfur inclusions. The mineral is found worldwide, usually in small quantities. Pale blue crystal specimens are found in Madagascar. White and orange variants also occurred at Yate, Bristol, UK, where it was ext ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thunder Bay
Thunder Bay is a city in and the seat of Thunder Bay District, Ontario, Canada. It is the most populous municipality in Northwestern Ontario and the second most populous (after Greater Sudbury) municipality in Northern Ontario. Its population is 108,843 according to the 2021 Canadian census. Located on Lake Superior, the census metropolitan area of Thunder Bay has a population of 123,258 and consists of the city of Thunder Bay, the municipalities of Oliver Paipoonge and Neebing, Ontario, Neebing, the townships of Shuniah, Conmee, Ontario, Conmee, O'Connor, Ontario, O'Connor, and Gillies, Ontario, Gillies, and the Fort William First Nation. European settlement in the region began in the late 17th century with a French fur trading outpost on the banks of the Kaministiquia River., City of Thunder Bay. Retrieved 5 June 2007. It grew into an important transportation hub with its port forming an important link in the shipping of grain and other products from western Canada, through t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
England
England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It shares Anglo-Scottish border, a land border with Scotland to the north and England–Wales border, another land border with Wales to the west, and is otherwise surrounded by the North Sea to the east, the English Channel to the south, the Celtic Sea to the south-west, and the Irish Sea to the west. Continental Europe lies to the south-east, and Ireland to the west. At the 2021 United Kingdom census, 2021 census, the population was 56,490,048. London is both List of urban areas in the United Kingdom, the largest city and the Capital city, capital. The area now called England was first inhabited by modern humans during the Upper Paleolithic. It takes its name from the Angles (tribe), Angles, a Germanic peoples, Germanic tribe who settled du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
County Durham
County Durham, officially simply Durham, is a ceremonial county in North East England.UK General Acts 1997 c. 23Lieutenancies Act 1997 Schedule 1(3). From legislation.gov.uk, retrieved 6 April 2022. The county borders Northumberland and Tyne and Wear to the north, the North Sea to the east, North Yorkshire to the south, and Cumbria to the west. The largest settlement is Darlington. The county has an area of and a population of . The latter is concentrated in the east; the south-east is part of the Teesside urban area, which extends into North Yorkshire. After Darlington, the largest settlements are Hartlepool, Stockton-on-Tees, and Durham, England, Durham. For Local government in England, local government purposes the county consists of the Unitary authorities of England, unitary authority areas of County Durham (district), County Durham, Borough of Darlington, Darlington, Borough of Hartlepool, Hartlepool, and part of Borough of Stockton-on-Tees, Stockton-on-Tees. Durham Count ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burnhope
Burnhope is a village and civil parish in County Durham, England. It is located in the Craghead valley on the opposite side to Stanley and has 1,564 inhabitants, as measured in the 2011 census. Burnhope overlooks Lanchester in the Browney Valley, roughly two miles to the west and Maiden Law is roughly two miles north. Holmside is roughly two miles to the south east. The village Burnhope is a village of contrasts, being home to many of the area's poorest and richest people (among them, children's author Terry Deary). In 2003 two wind turbines were erected in a field between the village and nearby Craghead, creating a new landmark to accompany the transmission mast. Burnhope is the only place that the Durham Miners' Gala has been held apart from Durham. This was in 1926 the year of the General Strike A general strike is a strike action in which participants cease all economic activity, such as working, to strengthen the bargaining position of a trade union o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lancashire
Lancashire ( , ; abbreviated ''Lancs'') is a ceremonial county in North West England. It is bordered by Cumbria to the north, North Yorkshire and West Yorkshire to the east, Greater Manchester and Merseyside to the south, and the Irish Sea to the west. The largest settlement is Preston, Lancashire, Preston, and the county town is the city of Lancaster, Lancashire, Lancaster. The county has an area of and a population of 1,490,300. Preston is located near the centre of the county, which is urbanised and includes the towns of Blackburn and Burnley; the seaside resort of Blackpool lies to the west, and Lancaster, Lancashire, Lancaster is in the north. For Local government in England, local government purposes the county comprises a non-metropolitan county, with twelve districts, and two Unitary authorities of England, unitary authority areas: Blackburn with Darwen and Borough of Blackpool, Blackpool. Lancashire County Council and the two unitary councils collaborate through the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anglezarke
Anglezarke is a sparsely populated civil parish in the Borough of Chorley in Lancashire, England. It is an agricultural area used for sheep farming and is also the site of reservoirs that were built to supply water to Liverpool. The area has a large expanse of moorland with many public footpaths and bridleways. The area is popular with walkers and tourists; it lies in the West Pennine Moors in Lancashire, sandwiched between the moors of Withnell and Rivington, and is close to the towns of Chorley, Horwich and Darwen. At the 2001 census it had a population of 23, but at the 2011 census the population was included within Heapey civil parish. The area was subjected to depopulation after the reservoirs were built. Toponymy Anglezarke is derived from the Old Norse name ''Anlaf'' and the Old Norse ''erg'', a 'hill pasture or shieling'. The elements together mean 'Anlaf's hill pasture'. In 1202 it was recorded as 'Andelevesarewe'. By 1225, this had become 'Anlavesargh'. In a deed of 12 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cumbria
Cumbria ( ) is a ceremonial county in North West England. It borders the Scottish council areas of Dumfries and Galloway and Scottish Borders to the north, Northumberland and County Durham to the east, North Yorkshire to the south-east, Lancashire to the south, and the Irish Sea to the west. Its largest settlement is the city of Carlisle. Cumbria is predominantly rural, with an area of and a population of 500,012; this makes it the third-largest ceremonial county in England by area but the eighth-smallest by population. Carlisle is located in the north; the towns of Workington and Whitehaven lie on the west coast, Barrow-in-Furness on the south coast, and Penrith, Cumbria, Penrith and Kendal in the east of the county. For local government purposes the county comprises two Unitary authorities of England, unitary authority areas, Westmorland and Furness and Cumberland (unitary authority), Cumberland. Cumbria was created in 1974 from the historic counties of Cumberland and Westmor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alston Moor
Alston Moor, formerly known as Alston with Garrigill, is a civil parish and electoral ward in the Westmorland and Furness district, in the ceremonial county of Cumbria, England, based around the small town of Alston. It is set in the moorlands of the North Pennines, mostly at an altitude of over 1000 feet. The parish/ward had a population of 2,088 at the 2011 census. As well as the town of Alston, the parish includes the villages of Garrigill and Nenthead, along with the hamlets of Nenthall, Nentsberry, Galligill, Blagill, Ashgill, Leadgate, Bayles and Raise. Alston Moor is part of the North Pennines Area of Outstanding Natural Beauty (AONB), the second largest of the 40 AONBs in England and Wales. Under the Local Government Act 1894, the parish, then known as Alston with Garrigill, which had previously been a rural sanitary district on its own, became one of the few single-parish rural districts. This remained in existence until 1974 when it became part of the Eden di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northumberland
Northumberland ( ) is a ceremonial counties of England, ceremonial county in North East England, on the Anglo-Scottish border, border with Scotland. It is bordered by the North Sea to the east, Tyne and Wear and County Durham to the south, Cumbria to the west, and the Scottish Borders council area to the north. The town of Blyth, Northumberland, Blyth is the largest settlement. Northumberland is the northernmost county in England. The county has an area of and a population of 320,274, making it the least-densely populated county in England. The south-east contains the largest towns: Blyth, Northumberland, Blyth, Cramlington, Ashington, Bedlington, and Morpeth, Northumberland, Morpeth, the last of which is the administrative centre. The remainder of the county is rural, the largest towns being Berwick-upon-Tweed in the far north and Hexham in the south-west. For local government purposes Northumberland is a Unitary authorities of England, unitary authority area. The county Histo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
