Janggunite

	Janggunite Janggunite is a rare manganese oxide mineral with the chemical formula . It was first described in 1975 for an occurrence in the Janggun mine, Bonghwa-gun, Gyeongsangbuk-do, South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korean Peninsula and sharing a land border with North Korea. Its western border is formed by the Yellow Sea, while its eas ... and named for the locality. References Oxide minerals Manganese minerals Orthorhombic minerals Minerals in space group 53 {{oxide-mineral-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Oxide Mineral The oxide mineral class includes those minerals in which the oxide anion (O2−) is bonded to one or more metal alloys. The hydroxide-bearing minerals are typically included in the oxide class. The minerals with complex anion groups such as the silicates, sulfates, carbonates and phosphates are classed separately. Simple oxides: XO Periclase group Periclase Manganosite Zincite group Zincite * Bromellite *Tenorite Litharge Cuprite Ice * Hematite group Corundum Hematite Ilmenite Rutile group Rutile Pyrolusite Cassiterite Baddeleyite Uraninite Thorianite Spinel group Spinel Gahnite Magnetite Franklinite Chromite Chrysoberyl Columbite Hydroxide subgroup: Brucite Manganite Romanèchite Goethite group: *Diaspore Goethite Nickel–Strunz Classification -04- Oxides IMA-CNMNC proposes a new hierarchical scheme (Mills et al., 2009). This list uses it to modify ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Oxide Mineral The oxide mineral class includes those minerals in which the oxide anion (O2−) is bonded to one or more metal alloys. The hydroxide-bearing minerals are typically included in the oxide class. The minerals with complex anion groups such as the silicates, sulfates, carbonates and phosphates are classed separately. Simple oxides: XO Periclase group Periclase Manganosite Zincite group Zincite * Bromellite *Tenorite Litharge Cuprite Ice * Hematite group Corundum Hematite Ilmenite Rutile group Rutile Pyrolusite Cassiterite Baddeleyite Uraninite Thorianite Spinel group Spinel Gahnite Magnetite Franklinite Chromite Chrysoberyl Columbite Hydroxide subgroup: Brucite Manganite Romanèchite Goethite group: *Diaspore Goethite Nickel–Strunz Classification -04- Oxides IMA-CNMNC proposes a new hierarchical scheme (Mills et al., 2009). This list uses it to modify ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Oxide Minerals The oxide mineral class includes those minerals in which the oxide anion (O2−) is bonded to one or more metal alloys. The hydroxide-bearing minerals are typically included in the oxide class. The minerals with complex anion groups such as the silicates, sulfates, carbonates and phosphates are classed separately. Simple oxides: XO Periclase group Periclase Manganosite Zincite group Zincite * Bromellite *Tenorite Litharge Cuprite Ice * Hematite group Corundum Hematite Ilmenite Rutile group Rutile Pyrolusite * Cassiterite Baddeleyite Uraninite *Thorianite Spinel group Spinel Gahnite Magnetite Franklinite * Chromite Chrysoberyl Columbite Hydroxide subgroup: Brucite Manganite * Romanèchite Goethite group: Diaspore Goethite Nickel–Strunz Classification -04- Oxides IMA-CNMNC proposes a new hierarchical scheme (Mills et al., 2009). This list uses it to mod ... [...More Info...] [...Related Items...] OR:** [Wikipedia] [Google] [Baidu]
picture info	Orthorhombic In crystallography, the orthorhombic crystal system is one of the 7 crystal systems. Orthorhombic lattices result from stretching a cubic lattice along two of its orthogonal pairs by two different factors, resulting in a rectangular prism with a rectangular base (''a'' by ''b'') and height (''c''), such that ''a'', ''b'', and ''c'' are distinct. All three bases intersect at 90° angles, so the three lattice vectors remain mutually orthogonal. Bravais lattices There are four orthorhombic Bravais lattices: primitive orthorhombic, base-centered orthorhombic, body-centered orthorhombic, and face-centered orthorhombic. For the base-centered orthorhombic lattice, the primitive cell has the shape of a right rhombic prism;See , row oC, column Primitive, where the cell parameters are given as a1 = a2, α = β = 90° it can be constructed because the two-dimensional centered rectangular base layer can also be described with primitive rhombic axes. Note that the length a of the primit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Manganese Manganese is a chemical element with the symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels. It improves strength, workability, and resistance to wear. Manganese oxide is used as an oxidising agent; as a rubber additive; and in glass making, fertilisers, and ceramics. Manganese sulfate can be used as a fungicide. Manganese is also an essential human dietary element, important in macronutrient metabolism, bone formation, and free radical defense systems. It is a critical component in dozens of proteins and enzymes. It is found mostly in the bones, but also the liver, kidneys, and brain. In the human brain, the manganese is bound to manganese metalloproteins, most notably glutamine synthetase in astrocytes. Manganese was first isolated in 1774. It is familiar in the laboratory in the form of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Bonghwa Bonghwa County (''Bonghwa-gun'') is a county in North Gyeongsang Province, South Korea. It lies inland, at the northern edge of the province, and borders Gangwon province to the north. To the east it is bounded by Yeongyang and Uljin counties, to the south by Andong, and to the west by Yeongju. The county is ringed by the Taebaek and Sobaek Mountains, the highest of which is Taebaek-san itself, at more than 1500 meters above sea level. Because of this mountainous inland location, Bonghwa has a colder climate than most of the province, with an average annual temperature of . Bonghwa is connected to the national rail grid by the Yeongdong Line, which stops at Bonghwa station on its way between Yeongju and Gangneung. The Yeongdong Line, which is not known for its speed, stops at a total of 13 stations as it winds through Bonghwa, before ambling north into the next province. Korean National Treasure No. 201, a rock-carved seated Buddhist statue, is located in Bukji-ri, Mu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Gyeongsangbuk-do North Gyeongsang Province ( ko, 경상북도, translit=Gyeongsangbuk-do, ) is a province in eastern South Korea. The province was formed in 1896 from the northern half of the former Gyeongsang province, and remained a province of Korea until the country's division in 1945, then became part of South Korea. Daegu was the capital of North Gyeongsang Province between 1896 and 1981, but has not been a part of the province since 1981. In 2016, the provincial capital moved from Daegu to Andong. The area of the province is , 19.1 percent of the total area of South Korea. Geography and climate The province is part of the Yeongnam region, on the south by Gyeongsangnam-do, on the west by Jeollabuk-do and Chungcheongbuk-do Provinces, and on the north by Gangwon-do Province. During the summer, North Gyeongsang Province is perhaps the hottest province in South Korea. This is helped by the fact that the province is largely surrounded by mountains: the Taebaek Mountains in the east and the S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed by the Yellow Sea, while its eastern border is defined by the Sea of Japan. South Korea claims to be the sole legitimate government of the entire peninsula and List of islands of South Korea, adjacent islands. It has a Demographics of South Korea, population of 51.75 million, of which roughly half live in the Seoul Capital Area, the List of metropolitan areas by population, fourth most populous metropolitan area in the world. Other major cities include Incheon, Busan, and Daegu. The Korean Peninsula was inhabited as early as the Lower Paleolithic period. Its Gojoseon, first kingdom was noted in Chinese records in the early 7th century BCE. Following the unification of the Three Kingdoms of Korea into Unified Silla, Silla and Balhae in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Manganese Minerals Manganese is a chemical element with the symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels. It improves strength, workability, and resistance to wear. Manganese oxide is used as an oxidising agent; as a rubber additive; and in glass making, fertilisers, and ceramics. Manganese sulfate can be used as a fungicide. Manganese is also an essential human dietary element, important in macronutrient metabolism, bone formation, and free radical defense systems. It is a critical component in dozens of proteins and enzymes. It is found mostly in the bones, but also the liver, kidneys, and brain. In the human brain, the manganese is bound to manganese metalloproteins, most notably glutamine synthetase in astrocytes. Manganese was first isolated in 1774. It is familiar in the laboratory in the form of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Orthorhombic Minerals In crystallography, the orthorhombic crystal system is one of the 7 crystal systems. Orthorhombic lattices result from stretching a cubic lattice along two of its orthogonal pairs by two different factors, resulting in a rectangular prism with a rectangular base (''a'' by ''b'') and height (''c''), such that ''a'', ''b'', and ''c'' are distinct. All three bases intersect at 90° angles, so the three lattice vectors remain mutually orthogonal. Bravais lattices There are four orthorhombic Bravais lattices: primitive orthorhombic, base-centered orthorhombic, body-centered orthorhombic, and face-centered orthorhombic. For the base-centered orthorhombic lattice, the primitive cell has the shape of a right rhombic prism;See , row oC, column Primitive, where the cell parameters are given as a1 = a2, α = β = 90° it can be constructed because the two-dimensional centered rectangular base layer can also be described with primitive rhombic axes. Note that the length a of the primiti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]