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M. F. Stephenson
Matthew Fleming Stephenson (1802–1882) was an American miner, geologist, and mineralogist based in the US state of Georgia. He was one of the first collectors of lazulite, rutile, pyrophyllite, and other minerals. A phrase he said while encouraging people not to leave Georgia for the California Gold Rush, "There's gold in them thar hills", is commonly referenced in American popular culture. Stephenson wrote various articles on his observations of minerals, as well as mound excavations in Georgia. In the 1870s, several of his articles were published by the Smithsonian Institution, including ''Account of Ancient Mounds in Georgia'' and ''Mounds in Bartow County near Cartersville, Georgia''. These described sites he visited and the artifacts found at each, such as mica mirrors, copper vessels, and quartz. He also published a major treatise in 1871 called ''Geology and Mineralogy of Georgia'' for which he is most famous. Other published works include a pamphlet ''Diamonds and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia
Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most-populous city, and Fairfax County is the most-populous political subdivision. The Commonwealth's population was over 8.65million, with 36% of them living in the Baltimore–Washington metropolitan area. The area's history begins with several indigenous groups, including the Powhatan. In 1607, the London Company established the Colony of Virginia as the first permanent English colony in the New World. Virginia's state nickname, the Old Dominion, is a reference to this status. Slave labor and land acquired from displaced native tribes fueled the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mound Builder (people)
A number of pre-Columbian cultures are collectively termed "Mound Builders". The term does not refer to a specific people or archaeological culture, but refers to the characteristic mound earthworks erected for an extended period of more than 5,000 years. The "Mound Builder" cultures span the period of roughly 3500 BCE (the construction of Watson Brake) to the 16th century CE, including the Archaic period, Woodland period ( Calusa culture, Adena and Hopewell cultures), and Mississippian period. Geographically, the cultures were present in the region of the Great Lakes, the Ohio River Valley, and the Mississippi River valley and its tributary waters. The first mound building was an early marker of political and social complexity among the cultures in the Eastern United States. Watson Brake in Louisiana, constructed about 3500 BCE during the Middle Archaic period, is currently the oldest known and dated mound complex in North America. It is one of 11 mound complexes from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1801 Births
Eighteen or 18 may refer to: * 18 (number), the natural number following 17 and preceding 19 * one of the years 18 BC, AD 18, 1918, 2018 Film, television and entertainment * ''18'' (film), a 1993 Taiwanese experimental film based on the short story ''God's Dice'' * ''Eighteen'' (film), a 2005 Canadian dramatic feature film * 18 (British Board of Film Classification), a film rating in the United Kingdom, also used in Ireland by the Irish Film Classification Office * 18 (''Dragon Ball''), a character in the ''Dragon Ball'' franchise * "Eighteen", a 2006 episode of the animated television series ''12 oz. Mouse'' Music Albums * ''18'' (Moby album), 2002 * ''18'' (Nana Kitade album), 2005 * '' 18...'', 2009 debut album by G.E.M. Songs * "18" (5 Seconds of Summer song), from their 2014 eponymous debut album * "18" (One Direction song), from their 2014 studio album ''Four'' * "18", by Anarbor from their 2013 studio album '' Burnout'' * "I'm Eighteen", by Alice Cooper common ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georgia Gold Rush
The Georgia Gold Rush was the second significant gold rush in the United States and the first in Georgia, and overshadowed the previous rush in North Carolina. It started in 1829 in present-day Lumpkin County near the county seat, Dahlonega, and soon spread through the North Georgia mountains, following the Georgia Gold Belt. By the early 1840s, gold became difficult to find. Many Georgia miners moved west when gold was found in the Sierra Nevada in 1848, starting the California Gold Rush. Since the 16th century, American Indians in Georgia told European explorers that the small amounts of gold which they possessed came from mountains of the interior. Some poorly documented accounts exist of Spanish or French mining gold in North Georgia between 1560 and 1690, but they are based on supposition and on rumors passed on by Indians. In summing up known sources, W.S. Yeates observed: "Many of these accounts and traditions seem to be quite plausible. Nevertheless, it is hardly probab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geologic Map Of Georgia
Geologic mapping of Georgia is the creation of geologic maps, special-purpose maps made to show geological features, of the State of Georgia in the United States. Rock units or geologic strata are shown by colors or symbols to indicate where they are exposed at the surface. Structural features such as faults and shear zones are also shown. Since the first national geological map, in 1809, there have been numerous maps which included the geology of Georgia. The first Georgia-specific geologic map was created in 1825. The most recent state-produced geologic map of Georgia, by the Georgia Department of Natural Resources is 1:500,000 scale, and was created in 1976 by the department's Georgia Geological Survey. It was generated from a base map produced by the United States Geological Survey. The state geologist and Director of the Geological Survey of Georgia was Sam M. Pickering, Jr. Since 1976, several geological maps of Georgia, featuring the state's five distinct geologic regions, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dahlonega, Georgia
The city of Dahlonega () is the county seat of Lumpkin County, Georgia, United States. As of the 2010 census, the city had a population of 5,242, and in 2018 the population was estimated to be 6,884. Dahlonega is located at the north end of Georgia highway 400, a freeway which connects Dahlonega to Atlanta. Dahlonega was named as one of the best places to retire by the publication ''Real Estate Scorecard''. Dahlonega was the site of the first major Gold Rush in the United States beginning in 1829. The Dahlonega Gold Museum Historic Site which is located in the middle of the public square, was originally built in 1836 as the Lumpkin County Courthouse. In 1849, when local gold miners were considering heading west to join the California Gold Rush, Dr. Matthew Fleming Stephenson, the assayer at the Dahlonega Branch Mint, tried to persuade miners to stay in Dahlonega. Standing on the courthouse balcony and pointing at the distant Findley Ridge, Dr. Stephenson was recalled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metallurgical Assay
A metallurgical assay is a compositional analysis of an ore, metal, or alloy, usually performed in order to test for purity or quality. Some assay methods are suitable for raw materials; others are more appropriate for finished goods. Raw precious metals (bullion) are assayed by an assay office. Silver is assayed by titration, gold by cupellation and platinum by inductively coupled plasma optical emission spectrometry (ICP OES). Precious metal items of art or jewelry are frequently hallmarked (depending upon the requirements of the laws of either the place of manufacture or the place of import). Where required to be hallmarked, semi-finished precious metal items of art or jewelry pass through the official testing channels where they are analyzed or assayed for precious metal content. While different nations permit a variety of legally acceptable finenesses, the assayer is actually testing to determine that the fineness of the product conforms with the statement or claim of fin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White County, Georgia
White County is a county located in the northeastern part of the U.S. state of Georgia. As of the 2020 census, the population was 28,003. The county seat is Cleveland. The county was created on December 22, 1857, formerly a part of Habersham County and most likely was named for Newton County Representative David T. White, who helped a Habersham representative successfully attain passage of an act creating the new county. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.6%) is water. The county is mostly located in the foothills of the Blue Ridge Mountains. Northern parts of the county have the highest elevations, being in the mountains themselves. The highest point in White County is Tray Mountain, shared with Towns County to the north. Tray Mountain is the 6th-highest mountain in Georgia. Another very prominent White County peak is Yonah Mountain, also known as Mount Yonah. This peak, located between Helen and C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classified as gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia. Quartz is the mineral defining the val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mica
Micas ( ) are a group of silicate minerals whose outstanding physical characteristic is that individual mica crystals can easily be split into extremely thin elastic plates. This characteristic is described as perfect basal cleavage. Mica is common in igneous and metamorphic rock and is occasionally found as small flakes in sedimentary rock. It is particularly prominent in many granites, pegmatites, and schists, and "books" (large individual crystals) of mica several feet across have been found in some pegmatites. Micas are used in products such as drywalls, paints, fillers, especially in parts for automobiles, roofing and shingles, as well as in electronics. The mineral is used in cosmetics and food to add "shimmer" or "frost." Properties and structure The mica group is composed of 37 phyllosilicate minerals. All crystallize in the monoclinic system, with a tendency towards pseudohexagonal crystals, and are similar in structure but vary in chemical composition. Micas are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cartersville, Georgia
Cartersville is a city in Bartow County, Georgia, United States; it is located within the northwest edge of the Atlanta metropolitan area. As of the 2020 census, the city had a population of 23,187. Cartersville is the county seat of Bartow County. History Cartersville, originally known as Birmingham, was founded by English-Americans in 1832. The town was incorporated as Cartersville in 1854. The present name is for Col. Farish Carter of Milledgeville, the owner of a large plantation. Cartersville was the long-time home of Amos Akerman, U.S. Attorney General under President Ulysses S. Grant; in that office he spearheaded the federal prosecution of members of the Ku Klux Klan and was one of the most important public servants of the Reconstruction era. Cartersville was designated the seat of Bartow County in 1867 following the destruction of Cassville by Sherman in the American Civil War. Cartersville was incorporated as a city in 1872. On February 26, 1916 a group of one hundr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bartow County, Georgia
Bartow County is located in the northwestern part of the U.S. state of Georgia. As of the 2020 census, the population was 108,901, up from 100,157 in 2010. The county seat is Cartersville. Traditionally considered part of northwest Georgia, Bartow County is now included in the Atlanta metropolitan area, mainly in the southeastern part near Cartersville, which has become an exurb more than from downtown Atlanta on I-75. It has a sole commissioner government, and is the largest county by population of the few remaining in Georgia with a sole commissioner. History Bartow County was created from the Cherokee lands of the Cherokee County territory on December 3, 1832, and named Cass County, after General Lewis Cass (1782–1866), Secretary of War under President Andrew Jackson, Minister to France and Secretary of State under President James Buchanan,http://www.kenkrakow.com/gpn/c.pdf who was instrumental in the removal of Native Americans from the area. However, the county w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
