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Grib Diamond Mine
The Grib mine is one of the largest diamond mines in Russia and in the world. The Grib diamond pipe is named in honor of Vladimir Grib, a post-graduate member of the exploration team, led by Andrei Vasilievich Sinitsyn, who died prior to the mine's discovery. The mine is located in the north-western part of the country in the Arkhangelsk Oblast. The mine has estimated reserves of 98.5 million carats of diamonds and an annual production capacity of 3.62 million carats. See also * List of mines in Russia * Lomonosov diamond mine The Lomonosov mine is one of the largest diamond mines in Russia and in the world. The mine is located in the north-western part of the country in the Arkhangelsk Oblast. The mine has estimated reserves of 220 million carats of diamonds and an ... References {{DEFAULTSORT:Grib Mine Diamond mines in Russia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mezensky District
Mezensky District () is an administrative district (raion), one of the administrative divisions of Arkhangelsk Oblast, twenty-one in Arkhangelsk Oblast, Russia.Law #65-5-OZ As a subdivisions of Russia#Municipal divisions, municipal division, it is incorporated as Mezensky Municipal District.Law #258-vneoch.-OZ It is located in the northeast of the oblast and borders with Nenets Autonomous Okrug in the northeast, Ust-Tsilemsky District of the Komi Republic in the east, Leshukonsky District, Leshukonsky and Pinezhsky Districts in the south, and with Primorsky District, Arkhangelsk Oblast, Primorsky District in the southwest. From the north, the district borders the White Sea. The area of the district is . Its administrative center is the types of inhabited localities in Russia, town of Mezen, Mezensky District, Arkhangelsk Oblast, Mezen. Population: The population of Mezen accounts for 34.6% of the total district's population. History The area was originally populated by speakers of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arkhangelsk Oblast
Arkhangelsk Oblast ( rus, Архангельская область, p=ɐrˈxanɡʲɪlʲskəjə ˈobɫəsʲtʲ) is a federal subjects of Russia, federal subject of Russia (an oblast). It includes the Arctic Ocean, Arctic archipelagos of Franz Josef Land and Novaya Zemlya, as well as the Solovetsky Islands in the White Sea. Arkhangelsk Oblast also has administrative jurisdiction over the Nenets Autonomous Okrug (NAO). Including the NAO, Arkhangelsk Oblast has an area of , it is the largest of List of first-level administrative divisions by area, first-level administrative divisions in Europe. Its population (including the NAO) was 1,227,626 as of the Russian Census (2010), 2010 Census. The classification of inhabited localities in Russia, city of Arkhangelsk, with a population of 301,199 as of the 2021 Census, is the administrative center of the oblast.Charter, Article 5 The second largest city is the nearby Severodvinsk, home to Sevmash, a major shipyard for the Russian N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russia
Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders of Russia, land borders with fourteen countries. Russia is the List of European countries by population, most populous country in Europe and the List of countries and dependencies by population, ninth-most populous country in the world. It is a Urbanization by sovereign state, highly urbanised country, with sixteen of its urban areas having more than 1 million inhabitants. Moscow, the List of metropolitan areas in Europe, most populous metropolitan area in Europe, is the capital and List of cities and towns in Russia by population, largest city of Russia, while Saint Petersburg is its second-largest city and Society and culture in Saint Petersburg, cultural centre. Human settlement on the territory of modern Russia dates back to the ... [...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. Diamond is tasteless, odourless, strong, brittle solid, colourless in pure form, a poor conductor of electricity, and insoluble in water. Another solid form of carbon known as graphite is the Chemical stability, chemically stable form of carbon at Standard 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. 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) can color ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrei Vasilievich Sinitsyn
Andrei Vasilievich Sinitsyn ( 18 May 1939 – 27 December 2014) was a Soviet/Russian geologist, geochemist and philosopher. Through the re-examination of exotic rocks that had been discovered but neglected by other geologists, Sinitsyn identified these rocks as kimberlites and that the Archangel region of the Soviet Union was diamondiferous. Based on this research he led teams that discovered the Lomonosov and Grib diamond mines, the latter considered to be one of the largest diamond mines in the world. Early life and education Sinitsyn was born in Leningrad, May 18, 1939 to a family of scientists and geologists and as a child lived in China and Central Asia. In 1956 he enrolled at the Geological Department of the Leningrad State University and graduated with honors in 1961. He completed his PhD in two years on the "Petrology of dolerite of the East Murmansk coast (Kola Peninsula)” and went to work for Sevzapgeologiya, Kola Peninsula as part of their cartographic detachment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carat (mass)
The carat (ct) is a unit of mass equal to , which is used for measuring gemstones and pearls. The current definition, sometimes known as the metric carat, was adopted in 1907 at the Fourth General Conference on Weights and Measures, and soon afterwards in many countries around the world. The carat is divisible into 100 ''points'' of 2 mg. Other subdivisions, and slightly different mass values, have been used in the past in different locations. In terms of diamonds, a paragon is a flawless stone of at least 100 carats (20 g). The ANSI X.12 EDI standard abbreviation for the carat is CD. Etymology First attested in English in the mid-15th century, the word ''carat'' comes from Italian ''carato'', which comes from Arabic (''qīrāṭ''; قيراط), in turn borrowed from Greek ''kerátion'' κεράτιον ' carob seed', a diminutive of ''keras'' 'horn'. It was a unit of weight, equal to 1/1728 (1/12) of a pound (see Mina (unit)). History Carob seeds have bee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamonds
Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is tasteless, odourless, strong, brittle solid, colourless in pure form, a poor conductor of electricity, and insoluble in water. Another solid form of carbon known as graphite is the chemically stable form of carbon at room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions. Diamond has the highest hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. 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 defects or impurities (about one per million of lattice atoms) can color a diamond blue (boron), yellow (nitrogen), brown (defects), green (radiation exposure), purple, pink, oran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mines In Russia
This list of mines in Russia is subsidiary to the list of mines article and lists working, defunct and future mines in the country organized by primary mineral output. For practical reasons, this list also contains stone, marble and other quarry, quarries. Bentonite *Liublinskaya mine Beryllium *Yermakovsky mine Chromium *Aganozersky mine *Shalozersky chromium mine Coal *Chulmakansky coal mine *Khangalassky coal mine *Listvianskaya coal mine *Neryungrinsky coal mine *Pereyaslavskoye coal mine *Sakhalin coal mine *Tsentralnyi coal mine *Tugnui coal mine *Urgal coal mine *Usinsky coal mine *Yubileynaya mine *Zhernovskoye coal mine Cobalt *Karakul deposit Copper *Bakr-Tay mine *Blyavinsky mine *Central Zhdanovskoye mine *Degtyarsky mine *Gaysky mine *Kirovgradsky mine *Komsomolsky mine *Kotselvaara mine *Lavrovo-Nikolaevsky mine *Letneye mine *Mayak mine *Medvezhy Ruchey mine *Molodezhny mine *Oktyabrskoye mine *Severny mine *Solnechny mine *Sorsky mine *Tash-Tau mine *Taymyrsky ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lomonosov Diamond Mine
The Lomonosov mine is one of the largest diamond mines in Russia and in the world. The mine is located in the north-western part of the country in the Arkhangelsk Oblast. The mine has estimated reserves of 220 million carats of diamonds and an annual production capacity of 2 million carats. Environmental impact of deposit mining The forecasted mass of diamond clay tailings (saponite) to be discharged is 68 million tons if mining to the depths of 460 m. Reserves for two pipes have been determined down to 460 m, yet Severalmaz's current plan is to complete open-pit mining on them by about 2026 when Arkhangelskaya is down to 324 m (currently at 154 m) and Karpinskogo-1 down to 260 m (currently at 105 m); a decision will then be made about whether it is more profitable to continue mining deeper or to mine one of the other pipes such as Pionerskaya. The tailings of diamond ore dressing waste are situated in complex geological conditions of high-groundwater influx and harsh cold clim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
