| Location | |
|---|---|
| Sakha Republic | |
| Country | Russia |
| Production | |
| Products | Niobium |
The Gornoye Ozero mine is a large niobium mine located in eastern Russia in Sakha Republic. Gornoye Ozero represents one of the largest niobium reserves in Russia having estimated reserves of 24 million tonnes of ore grading 0.36% niobium. [1]
Niobium is a chemical element; it has symbol Nb and atomic number 41. It is a light grey, crystalline, and ductile transition metal. Pure niobium has a Mohs hardness rating similar to pure titanium, and it has similar ductility to iron. Niobium oxidizes in Earth's atmosphere very slowly, hence its application in jewelry as a hypoallergenic alternative to nickel. Niobium is often found in the minerals pyrochlore and columbite. Its name comes from Greek mythology: Niobe, daughter of Tantalus, the namesake of tantalum. The name reflects the great similarity between the two elements in their physical and chemical properties, which makes them difficult to distinguish.
Tantalum is a chemical element; it has symbol Ta and atomic number 73. Previously known as tantalium, it is named after Tantalus, a figure in Greek mythology. Tantalum is a very hard, ductile, lustrous, blue-gray transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as components of strong high-melting-point alloys. It is a group 5 element, along with vanadium and niobium, and it always occurs in geologic sources together with the chemically similar niobium, mainly in the mineral groups tantalite, columbite and coltan.
Coltan is a dull black metallic ore from which the elements niobium and tantalum are extracted. The niobium-dominant mineral in coltan is columbite, and the tantalum-dominant mineral is tantalite.
Mining in Brazil is centered on the extraction of iron, copper, gold, aluminum, manganese, tin, niobium, and nickel. About gemstones, Brazil is the world's largest producer of amethyst, topaz, agate and is a big producer of tourmaline, emerald, aquamarine, garnet and opal.
Chatyr-Köl is an endorheic alpine lake in the Tian Shan mountains in At-Bashy District of Naryn Province, Kyrgyzstan; it lies in the lower part of Chatyr-Köl Depression near the Torugart Pass border crossing into China. The name of the lake means “Celestial Lake” in Kyrgyz.
The Mrima Hill mine is a large niobium mine located in southern Kenya in the Coast Province, close to Mombasa. Mrima Hill represents one of the largest niobium reserves in Kenya, having estimated reserves of 105.3 million tonnes of ore grading 0.65% niobium metal.
The Thor Lake mine is a large mine located in the northern part of Canada in Northwest Territories. Thor Lake represents one of the largest tantalum reserves in Canada having estimated reserves of 70 million tonnes of ore grading 0.03% tantalum and 0.04% niobium.
The Motzfeldt mine is a large niobium mine located in southern Greenland in Kujalleq. Motzfeldt represents one of the largest niobium reserves in Greenland having estimated reserves of 130 million tonnes of ore grading 1% niobium and 0.04% tantalum.
The Qaqqaarsuk deposit is a large niobium mine located in Qeqqata in southern Greenland. Qaqqaarsuk represents one of the largest niobium reserves in Greenland having estimated reserves of 3.5 million tonnes of ore grading 0.5% niobium.
The Ulaan Tolgoi mine is a large niobium mine located in central Mongolia. Ulaan Tolgoi represents one of the largest niobium reserves in Mongolia having estimated reserves of 200 million tonnes of ore grading 0.06% niobium.
The Sukulu mine is a large niobium mine located in eastern Uganda in the Eastern Region. Sukulu represents one of the largest niobium reserves in Uganda having estimated reserves of 230 million tonnes of ore grading 0.2% niobium metal.
The mining industry of Yemen is at present dominated by fossil mineral of petroleum and liquefied natural gas (LNG), and to a limited extent by extraction of dimension stone, gypsum, and refined petroleum. Reserves of metals like cobalt, copper, gold, iron ore, nickel, niobium, platinum-group metals, silver, tantalum, and zinc are awaiting exploration. Industrial minerals with identified reserves include black sands with ilmenite, monazite, rutile, and zirconium, celestine, clays, dimension stone, dolomite, feldspar, fluorite, gypsum, limestone, magnesite, perlite, pure limestone, quartz, salt, sandstone, scoria, talc, and zeolites; some of these are under exploitation.
Companhia Brasileira de Metalurgia e Mineração, or CBMM for short, is a Brazilian company that specializes in the processing and technology of niobium, extracted from its pyrochlore mine near the city of Araxá, in the Brazilian state of Minas Gerais.
The Morro dos Seis Lagos Biological Reserve is a biological reserve in the state of Amazonas, Brazil. It protects an inselberg in the Amazon rainforest that contains valuable minerals. Mining has been prohibited since the reserve protected, and since it is in an indigenous territory.
The Arctic zone of the Russian Federation is the territory of the Extreme North, which is the largest among the Arctic states. It includes the land part, water area and continental shelf of the seas of the Arctic Ocean. If we take the Arctic Circle as the southern boundary of the Arctic, it covers an area of over 9 million km^2, of which almost 7 million km^2 is in the water area. In the Russian Arctic, territory mastered by man beyond the Arctic Circle and near it, as well as reserves of untouched nature, coexist. The territories of the following subjects of the Russian Federation - the Arkhangelsk, Murmansk regions, the Republic of Sakha (Yakutia), the Krasnoyarsk Territory, the Nenets, Yamalo-Nenets and Chukotka Autonomous Districts, the Komi Republic with a population of over 1 million people - are fully or partly included in the Arctic zone.
Gornoye is a rural locality in Urgushevsky Selsoviet, Karaidelsky District, Bashkortostan, Russia. The population was 30 as of 2010. There is 1 street.
Gornoye Tatarintsevo is a rural locality in Denisovskoye Rural Settlement, Gorokhovetsky District, Vladimir Oblast, Russia. The population was 4 as of 2010.
Boltutino is a rural locality in Staroselskoye Rural Settlement, Vologodsky District, Vologda Oblast, Russia. The population was 2 as of 2002.
Gornoye is a rural locality in Staroselskoye Rural Settlement, Vologodsky District, Vologda Oblast, Russia. The population was 9 as of 2002.