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Fucauma Diamond Mine
The Fucauma Diamond Mine is a diamond mine under construction in the Lunda Norte Province of Angola. The mine is owned by a consortium of diamond mining companies, the two largest holders being Endiama with 40 percent ownership and Trans Hex with 35% ownership. A feasibility study was done, which included the second phase of bulk sampling and drilling Drilling is a cutting process where a drill bit is spun to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the work-piece and rotated at ra ... was completed in February 2004. The result of the study was a plan for a US$15 million capital expansion programme, that would lead to a full-scale mining production capacity of 750 000 m3/year that is anticipated to yield 120 in the first year of full-scale mining. Pilot production was underway early in 2005 with full-scale mining expected to begin six months later. The Fucauma mine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Provinces Of Angola
Angola is divided into eighteen provinces, known in Portuguese language, Portuguese as ''províncias'': See also *List of provinces of Angola by Human Development Index *Municipalities of Angola * Communes of Angola * ISO 3166-2:AO, the ISO codes for Angola. References Bibliography * {{Authority control Provinces of Angola, Subdivisions of Angola Lists of administrative divisions, Angola, Provinces Administrative divisions in Africa, Angola 1 First-level administrative divisions by country, Provinces, Angola Angola geography-related lists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunda Norte Province
Lunda Norte ( en, North Lunda) is a province of Angola. It has an area of 103,760 km² and a population of 862,566. Angola's first President, Agostino Neto, made Lucapa the provincial capital after independence, but the capital was later moved to Dundo. The province borders the Democratic Republic of Congo in the northeast and Lunda Sul in the south. The province is rich in gold and diamonds, but remains vastly underdeveloped and impoverished. UNITA used the money generated from the sale of diamonds to fund war efforts. Cuango River valley, the richest diamond area of Angola is located in the province. Mining is done by notable companies like DeBeers and Endiama. The Lunda province whose capital was Saurimo was created by the Portuguese colonial empire on July 13, 1895. It was divided into Lunda-Sul and Lunda-Norte subdivisions through a constitution act in 1978 by the People's Movement for the Liberation of Angola (MPLA) government. Iron and manganese mining are also importa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endiama
Endiama E.P. (''Empresa Nacional de Diamantes E.P.'') is the national diamond company of Angola and it is the exclusive concessionary of mining rights in the domain of diamonds. Angola's state-run diamond company Endiama produced 8.55 million carats of diamonds in 2010. Endiama's primary property is Catoca, which is a joint venture between Endiama (32.8%), Russia based ALROSA (32.8%), China based LLI (18%), and Brazil based Odebrecht (16.4%). Catoca is the seventh largest diamond mine in the world, and is estimated to produce over 7 million carats of diamonds in 2014 worth just under $1 billion. March 13, 2014 Through the long time former president of Endiama, Noé Baltazar, who is part of the inner circle of |
Trans Hex
Trans- is a Latin prefix meaning "across", "beyond", or "on the other side of". Used alone, trans may refer to: Arts, entertainment, and media * Trans (festival), a former festival in Belfast, Northern Ireland, United Kingdom * ''Trans'' (film), a 1998 American film * Trans Corp, an Indonesian business unit of CT Corp in the fields of media, lifestyle, and entertainment ** Trans Media, a media subsidiary of Trans Corp *** Trans TV, an Indonesian television network *** Trans7, an Indonesian television network Literature * '' Trans: Gender and Race in an Age of Unsettled Identities'', a 2016 book by Rogers Brubaker * '' Trans: When Ideology Meets Reality'', a 2021 book by Helen Joyce Music * ''Trans'' (album), by Neil Young * ''Trans'' (Stockhausen), a 1971 orchestral composition Places * Trans, Mayenne, France, a commune * Trans, Switzerland, a village Science and technology * Trans effect in inorganic chemistry, the increased lability of ligands that are trans to certain o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond
Diamond is a Allotropes of carbon, solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Another solid form of carbon known as graphite is the Chemical stability, chemically stable form of carbon at Standard conditions for temperature and pressure, room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions. Diamond has the highest Scratch hardness, hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. They are also the reason that diamond anvil cells can subject materials to pressures found deep in the Earth. Because the arrangement of atoms in diamond is extremely rigid, few types of impurity can contaminate it (two exceptions are boron and nitrogen). Small numbers of lattice defect, defects or impurities (about one per million of lattice atoms) color diamond blue (bor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Diamond Mines
There are a limited number of commercially available diamond mines currently operating in the world, with the 50 largest mines accounting for approximately 90% of global supply. Diamonds are also mined alluvially over disperse areas, where diamonds have been eroded out of the ground, deposited, and concentrated by water or weather action. There is also at least one example of a heritage diamond mine (Crater of Diamonds State Park). Africa Angola *Catoca diamond mine * Fucauma diamond mine * Luarica diamond mine Botswana *Damtshaa diamond mine *Jwaneng diamond mine *Letlhakane diamond mine *Orapa diamond mine * Karowe diamond mine *Lerala diamond mine South Africa *Baken diamond mine *Cullinan diamond mine (previously "Premier mine") *Finsch diamond mine *Kimberley, Northern Cape *Koffiefontein mine *Venetia diamond mine Others *Baba Diamond Fields, Zimbabwe *Marange diamond fields, Zimbabwe *Murowa diamond mine, Zimbabwe *Williamson diamond mine, Tanzania *Letseng diamo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond
Diamond is a Allotropes of carbon, solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Another solid form of carbon known as graphite is the Chemical stability, chemically stable form of carbon at Standard conditions for temperature and pressure, room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions. Diamond has the highest Scratch hardness, hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. They are also the reason that diamond anvil cells can subject materials to pressures found deep in the Earth. Because the arrangement of atoms in diamond is extremely rigid, few types of impurity can contaminate it (two exceptions are boron and nitrogen). Small numbers of lattice defect, defects or impurities (about one per million of lattice atoms) color diamond blue (bor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angola
, national_anthem = " Angola Avante"() , image_map = , map_caption = , capital = Luanda , religion = , religion_year = 2020 , religion_ref = , coordinates = , largest_city = capital , official_languages = Portuguese , languages2_type = National languages , languages2 = , ethnic_groups = , ethnic_groups_ref = , ethnic_groups_year = 2000 , demonym = , government_type = Unitary dominant-party presidential republic , leader_title1 = President , leader_name1 = João Lourenço , leader_title2 = Vice President , leader_name2 = Esperança da CostaInvestidura do Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining Feasibility Study
A mining feasibility study is an evaluation of a proposed mining project to determine whether the mineral resource can be mined economically. There are three types of feasibility study used in mining, order of magnitude, preliminary feasibility and detailed feasibility. Order of magnitude Order of magnitude feasibility studies (sometimes referred to as "scoping studies") are an initial financial appraisal of an inferred mineral resource. Depending on the size of the project, an order of magnitude study may be carried out by a single individual. It will involve a preliminary mine plan, and is the basis for determining whether to proceed with an exploration program, and more detailed engineering work. Order-of-magnitude studies are developed by copying plans and factoring known costs from existing projects completed elsewhere and are accurate to within 40–50%. Preliminary feasibility Preliminary feasibility studies or "pre-feasibility studies" are more detailed than order of magni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drilling
Drilling is a cutting process where a drill bit is spun to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute. This forces the cutting edge against the work-piece, cutting off chips (swarf) from the hole as it is drilled. In rock drilling, the hole is usually not made through a circular cutting motion, though the bit is usually rotated. Instead, the hole is usually made by hammering a drill bit into the hole with quickly repeated short movements. The hammering action can be performed from outside the hole ( top-hammer drill) or within the hole (down-the-hole drill, DTH). Drills used for horizontal drilling are called drifter drills. In rare cases, specially-shaped bits are used to cut holes of non-circular cross-section; a square cross-section is possible. Process Drilled holes are char ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Capital Expansion
Capital may refer to: Common uses * Capital city, a municipality of primary status ** List of national capital cities * Capital letter, an upper-case letter Economics and social sciences * Capital (economics), the durable produced goods used for further production *Economic capital * Financial capital, an economic resource measured in terms of money *Capital (Marxism), a central concept in Marxian critique of political economy *Capital good *Natural capital *Public capital *Human capital *Instructional capital *Social capital Architecture and buildings * Capital (architecture), the topmost member of a column or pilaster * Capital (fortification), a proportion of a bastion * The Capital (building), a commercial building in Mumbai, India Arts, entertainment and media Literature Books * ''Das Kapital'' ('Capital: Critique of Political Economy'), a foundational theoretical text by Karl Marx * '' Capital: The Eruption of Delhi'', a 2014 book by Rana Dasgupta * ''Capital'' (novel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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