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Sweet Home Mine
Sweet Home Mine is a mine near Alma, Colorado, United States. It was founded in 1873 as a silver mine. It is best known as the source of the famous rhodochrosite crystals "Alma King", displayed at the Denver Museum of Nature and Science, and "Alma Rose", displayed at the Rice Northwest Museum of Rocks and Minerals in Oregon. Specimens of Sweet Home Mine rhodochrosite are also displayed at the geology museum at the Colorado School of Mines, and in the Royal Ontario Museum, the Houston Museum of Natural Science, and in many other museums and hundreds of private collections. See also *Orphan Boy mine An orphan (from the el, ορφανός, orphanós) is a child whose parents have died. In common usage, only a child who has lost both parents due to death is called an orphan. When referring to animals, only the mother's condition is usuall ... References External links * A geochemical study of the Sweet Home Mine, Colorado Mineral Belt, USA: hydrothermal fluid evolution ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodochrosite Sweet Home ROM
Rhodochrosite is a manganese carbonate mineral with chemical composition MnCO3. In its (rare) pure form, it is typically a rose-red color, but impure specimens can be shades of pink to pale brown. It streaks white, and its Mohs hardness varies between 3.5 and 4. Its specific gravity is between 3.5 and 3.7. It crystallizes in the trigonal system, and cleaves with rhombohedral carbonate cleavage in three directions. Crystal twinning often is present. It is transparent to translucent with refractive indices of ''nω''=1.814 to 1.816, ''nε''=1.596 to 1.598. It is often confused with the manganese silicate, rhodonite, but is distinctly softer. It is officially listed as one of the National symbols of Argentina. Rhodochrosite forms a complete solid solution series with iron carbonate (siderite). Calcium, (as well as magnesium and zinc, to a limited extent) frequently substitutes for manganese in the structure, leading to lighter shades of red and pink, depending on the degree of substit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alma King Rhodochrosite
Alma or ALMA may refer to: Arts and entertainment * ''Alma'' (film), a 2009 Spanish short animated film * ''Alma'' (Oswald de Andrade novel), 1922 * ''Alma'' (Le Clézio novel), 2017 * ''Alma'' (play), a 1996 drama by Joshua Sobol about Alma Mahler-Werfel * ''Alma'' (album), by Carminho, 2012 * "Alma" (song), by Fonseca, 2008 * "Alma", a song by Tom Lehrer from the 1965 album ''That Was the Year That Was'' * ALMA Award, or American Latino Media Arts Award * Astrid Lindgren Memorial Award, an international children's literary award established by the Swedish government Businesses * Alma Books, a British publishing house * Alma Media, a Finnish digital service business * ALMA de México, a low-cost airline Military * Battle of the Alma, an 1854 Crimean War battle * ''Alma''-class ironclad, French Navy corvettes built in the 1860s ** French ironclad ''Alma'' People and fictional characters * Alma (given name), including a list of people, fictional characters and Mormon re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alma, Colorado
Alma is a Statutory Town in Park County, Colorado, United States. The town population was 296 at the 2020 United States Census. Alma is located West and South of the Denver-Aurora-Lakewood, CO Metropolitan Statistical Area and the Front Range Urban Corridor. Description At an elevation of approximately , Alma is the highest incorporated municipality in the United States when considering only areas with permanent residents. Its post office is located at the highest elevation of any in the country. Alma, which is considered a town and not a city, does not take the title of "highest incorporated city" from Leadville, Colorado. Using administrative boundaries as a measure, not settled areas, in 2006 Winter Park, Colorado became the highest incorporated town due to its annexation of a ski area. Beyond the official limits of Alma is a residential area which extends to above sea level on Mountain View Drive; this area uses Fairplay, Colorado addresses, despite being slightly cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodochrosite
Rhodochrosite is a manganese carbonate mineral with chemical composition MnCO3. In its (rare) pure form, it is typically a rose-red color, but impure specimens can be shades of pink to pale brown. It streaks white, and its Mohs hardness varies between 3.5 and 4. Its specific gravity is between 3.5 and 3.7. It crystallizes in the trigonal system, and cleaves with rhombohedral carbonate cleavage in three directions. Crystal twinning often is present. It is transparent to translucent with refractive indices of ''nω''=1.814 to 1.816, ''nε''=1.596 to 1.598. It is often confused with the manganese silicate, rhodonite, but is distinctly softer. It is officially listed as one of the National symbols of Argentina. Rhodochrosite forms a complete solid solution series with iron carbonate (siderite). Calcium, (as well as magnesium and zinc, to a limited extent) frequently substitutes for manganese in the structure, leading to lighter shades of red and pink, depending on the degree of substit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denver Museum Of Nature And Science
The Denver Museum of Nature & Science is a municipal natural history and science museum in Denver, Colorado. It is a resource for informal science education in the Rocky Mountain region. A variety of exhibitions, programs, and activities help museum visitors learn about the natural history of Colorado, Earth, and the universe. The building houses more than one million objects in its collections including natural history and anthropological materials, as well as archival and library resources. The museum is an independent, nonprofit institution with approximately 350 full-time and part-time staff, more than 1,800 volunteers, and a 25-member board of trustees. It is accredited by the American Alliance of Museums and is a Smithsonian Institution affiliate. Education programs The museum provides programming in six main areas. The exhibitions, IMAX films, lectures, classes, and programs pertain to one or more of the following core competencies: anthropology, geology, health scienc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rice Northwest Museum Of Rocks And Minerals
The Rice Northwest Museum of Rocks and Minerals is a non-profit museum in Hillsboro, Oregon, United States. Located just north of the Sunset Highway on the northern edge of Hillsboro, the earth science museum is in the Portland metropolitan area. Opened in 1997, the museum's collections date to the 1930s with the museum housed in a home built to display the rock and mineral collections of the museum founders. The ranch-style home is listed on the National Register of Historic Places, the first of its kind listed in Oregon. In 2015 the museum became a Smithsonian Affiliate museum. The museum sits on 23 wooded acres (9.3 ha), with the main building containing of space. Collections include petrified wood, various fossils, fluorescent minerals, meteorites, zeolites, and a variety of other minerals. With more than 20,000 specimens, the museum is the largest of its kind in the Pacific Northwest. The facility has around 25,000 visitors each year. History Richard L. Rice married Hele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado School Of Mines
The Colorado School of Mines, informally called Mines, is a public research university in Golden, Colorado, founded in 1874. The school offers both undergraduate and graduate degrees in engineering, science, and mathematics, with a focus on energy and the environment. While Mines does offer minor degrees in the humanities, arts, and social sciences, it only offers major degrees in STEM fields, with the exception of economics. In the Fall 2019 semester, the school had 6,607 students enrolled, with 5,155 in an undergraduate program and 1,452 in a graduate program. The school has been co-educational since its founding, however, enrollment remains predominantly male (69.2% as of Fall 2020). In every QS World University Ranking from 2016 to 2020, the university was ranked as the top institution in the world for mineral and mining engineering. It is classified among "R1: Doctoral Universities – Very high research activity". __toc__ History Early history Golden, Colorado, e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Ontario Museum
The Royal Ontario Museum (ROM) is a museum of art, world culture and natural history in Toronto, Ontario, Canada. It is one of the largest museums in North America and the largest in Canada. It attracts more than one million visitors every year, making the ROM the most-visited museum in Canada. The museum is north of Queen's Park, in the University of Toronto district, with its main entrance on Bloor Street West. Museum subway station is named after the ROM and, since a 2008 renovation, is decorated to resemble the institution's collection at the platform level. Established on April 16, 1912, and opened on March 19, 1914, the museum has maintained close relations with the University of Toronto throughout its history, often sharing expertise and resources. The museum was under the direct control and management of the University of Toronto until 1968, when it became an independent Crown agency of the Government of Ontario. Today, the museum is Canada's largest field-research in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Houston Museum Of Natural Science
The Houston Museum of Natural Science (abbreviated as HMNS) is a natural history museum located on the northern border of Hermann Park in Houston, Texas, United States. The museum was established in 1909 by the Houston Museum and Scientific Society, an organization whose goals were to provide a free institution for the people of Houston focusing on education and science. Museum attendance totals over two million visitors each year. The museum complex consists of a central facility with four floors of natural science halls and exhibits, the Burke Baker Planetarium, the Cockrell Butterfly Center, and the Wortham Giant Screen Theatre (formerly known as the Wortham IMAX Theatre). The museum is one of the most popular in the United States and ranks just below New York City's American Museum of Natural History and Metropolitan Museum of Art and the M. H. de Young Memorial Museum in San Francisco in most attendance amongst non- Smithsonian museums. Much of the museum's popularity is attr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orphan Boy Mine
An orphan (from the el, ορφανός, orphanós) is a child whose parents have died. In common usage, only a child who has lost both parents due to death is called an orphan. When referring to animals, only the mother's condition is usually relevant (i.e. if the female parent has gone, the offspring is an orphan, regardless of the father's condition). Definitions Various groups use different definitions to identify orphans. One legal definition used in the United States is a minor bereft through "death or disappearance of, abandonment or desertion by, or separation or loss from, both parents". In the common use, an orphan does not have any surviving parent to care for them. However, the United Nations Children's Fund (UNICEF), Joint United Nations Programme on HIV and AIDS (UNAIDS), and other groups label any child who has lost one parent as an orphan. In this approach, a ''maternal orphan'' is a child whose mother has died, a ''paternal orphan'' is a child whose fat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mindat
Mindat may refer to: Places in Burma/Myanmar *Mindat, Chin State, in Burma *Mindat Township, in Burma *Mindat District in Chin State, Burma Other uses *Mindat Min Kanaung Mintha ( my, ကနောင်မင်းသား; 31 January 1820 – 2 August 1866) was crown prince of Burma and son of King Tharrawaddy and younger brother of King Mindon of Burma. Towards the end of the Second Anglo-Burmese Wa ..., a Burmese prince * Mindat.org, an online mineralogy database {{dab, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
