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Star Of Bombay
The Star of Bombay is a 182- carat (36.4-g) cabochon-cut star sapphire originating in Sri Lanka. The violet-blue gem was given to silent film actress Mary Pickford by her husband, Douglas Fairbanks. She bequeathed it to the Smithsonian Institution. It is the namesake of the popular alcoholic beverage Bombay Sapphire, a British-manufactured gin. Description The ''Star of Bombay'' is a 182 carat (36.4-g) cabochon-cut star sapphire. According to Southern Jewelry News, "The Star of Bombay sapphire belongs to the mineral species corundum. Pure corundum is colorless, but trace amounts of transition elements like vanadium or chromium result in different colors in the crystal. The Star of Bombay’s violet-blue color is caused by the presence of titanium and iron giving the blue tint, and vanadium contributing to its violet back color." History The ''Star of Bombay'' originates from Sri Lanka and is one of the largest star sapphires which have names unrelated to their origin, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Star Of Bombay (crop Bright NR)
The Star of Bombay is a 182- carat (36.4-g) cabochon-cut star sapphire originating in Sri Lanka. The violet-blue gem was given to silent film actress Mary Pickford by her husband, Douglas Fairbanks. She bequeathed it to the Smithsonian Institution. It is the namesake of the popular alcoholic beverage Bombay Sapphire, a British-manufactured gin. Description The ''Star of Bombay'' is a 182 carat (36.4-g) cabochon-cut star sapphire. According to Southern Jewelry News, "The Star of Bombay sapphire belongs to the mineral species corundum. Pure corundum is colorless, but trace amounts of transition elements like vanadium or chromium result in different colors in the crystal. The Star of Bombay’s violet-blue color is caused by the presence of titanium and iron giving the blue tint, and vanadium contributing to its violet back color." History The ''Star of Bombay'' originates from Sri Lanka and is one of the largest star sapphires which have names unrelated to their origin, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titanium
Titanium is a chemical element with the symbol Ti and atomic number 22. Found in nature only as an oxide, it can be reduced to produce a lustrous transition metal with a silver color, low density, and high strength, resistant to corrosion in sea water, aqua regia, and chlorine. Titanium was discovered in Cornwall, Great Britain, by William Gregor in 1791 and was named by Martin Heinrich Klaproth after the Titans of Greek mythology. The element occurs within a number of minerals, principally rutile and ilmenite, which are widely distributed in the Earth's crust and lithosphere; it is found in almost all living things, as well as bodies of water, rocks, and soils. The metal is extracted from its principal mineral ores by the Kroll and Hunter processes. The most common compound, titanium dioxide, is a popular photocatalyst and is used in the manufacture of white pigments. Other compounds include titanium tetrachloride (TiCl4), a component of smoke screens and catalysts; and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Individual Sapphires
An individual is that which exists as a distinct entity. Individuality (or self-hood) is the state or quality of being an individual; particularly (in the case of humans) of being a person unique from other people and possessing one's own needs or goals, rights and responsibilities. The concept of an individual features in diverse fields, including biology, law, and philosophy. Etymology From the 15th century and earlier (and also today within the fields of statistics and metaphysics) ''individual'' meant " indivisible", typically describing any numerically singular thing, but sometimes meaning "a person". From the 17th century on, ''individual'' has indicated separateness, as in individualism. Law Although individuality and individualism are commonly considered to mature with age/time and experience/wealth, a sane adult human being is usually considered by the state as an "individual person" in law, even if the person denies individual culpability ("I followed instruct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Sapphires By Size
This is a list of sapphires by size. Sapphire Sapphires are a precious gemstone, a variety of the mineral corundum, consisting of aluminum oxide () with trace amounts of elements such as iron, titanium, chromium, copper, or magnesium. It is typically blue, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors; "parti sapphires" show two or more colors. The only color corundum stone that the term sapphire is not used for is red, which is called a ruby. Pink colored corundum may be either classified as ruby or sapphire depending on locale. Commonly, natural sapphires are cut and polished into gemstones and worn in jewelry. They also may be created synthetically in laboratories for industrial or decorative purposes in large crystal boules. Because of the remarkable hardness of sapphires – 9 on the Mohs scale (the third hardest mineral, after diamond at 10 and moissanite at 9.5) – sapphires are also used in some non-ornamental applications, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Individual Gemstones
A number of gemstones have gained fame, either because of their size and beauty or because of the people who owned or wore them. A list of famous gemstones follows. Alexandrites * Smithsonian museums' Alexandrite, the largest cut alexandrite weighing 65.08 carats. Aquamarines A birthstone. * The Dom Pedro – The world's largest cut and polished aquamarine. Housed in the permanent collection of the Houston Museum of Natural Science Diamonds :''See List of diamonds'' Emeralds * Bahia Emerald * Carolina Emperor, 310 carats uncut, 64.8 carats cut; discovered in the United States in 2009, resides in the North Carolina Museum of Natural Sciences, Raleigh * Chalk Emerald * Duke of Devonshire Emerald * Emerald of Saint Louis, 51.60 carats cut; discovered in Austria, probably Habachtal, resides in the National Museum of Natural History, Paris * Gachalá Emerald * Mogul Mughal Emerald * Patricia Emerald, 632 carats uncut, dihexagonal (12 sided); discovered in Colombia in 1920, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Star Of Asia
The Star of Asia is a large, cabochon A cabochon (; ) is a gemstone that has been shaped and polished, as opposed to faceted. The resulting form is usually a convex (rounded) obverse with a flat reverse. Cabochon was the default method of preparing gemstones before gemstone cutt ...-cut star sapphire currently located at the Smithsonian National Museum of Natural History. It is noted for its significant size and is considered to be one of the largest of its type. Adding to its aesthetic value are its rich blue colour and Asterism (gemology), clear star, formed from three intersecting rutile striations. The stone was mined in Sri Lanka and was co-owned by the Kohinoor Trading Company and King’s Jewelers of Colombo, Sri Lanka. It was brought to the U.S. in 1950 for display at the first United States International Trade Fair in Chicago. By 1958, it was for sale through consignment in London, and was eventually purchased by a Swiss-American named Jack Mason. In 1961, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Star Of Artaban
The Star of Artaban is a 287– carat cabochon-cut star sapphire currently located at the Smithsonian National Museum of Natural History. Its origin is somewhat obscure but it is believed to come from Sri Lanka. Unlike some other sapphires, it is not transparent and is of a milky blue colour. It was donated by an anonymous member of the Georgia Mineral Society in the 1941–1943 time period. The name of the gem is based on the 1895 tale of ''The Other Wise Man'' by Henry van Dyke. The story's hero, Artaban, was a wise man from Persia who set out to join the Biblical Magi in their journey to see the newborn Jesus. He purchased three great gems, one of which was a sapphire, to present as a gift to the newborn king. He never achieved his goal, and gave his gems to the needy instead. See also *Star of Asia *Star of Bombay *Star of India (gem) *The Star of Adam *List of individual gemstones *List of sapphires by size This is a list of sapphires by size. Sapphire Sapphires ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the List of United States cities by population density, most densely populated major city in the United States, and is more than twice as populous as second-place Los Angeles. New York City lies at the southern tip of New York (state), New York State, and constitutes the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the world by urban area, urban landmass. With over 20.1 million people in its metropolitan statistical area and 23.5 million in its combined statistical area as of 2020, New York is one of the world's most populous Megacity, megacities, and over 58 million people live within of the city. New York City is a global city, global Culture of New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trabert & Hoeffer Inc
Trabert is a surname. Notable people with the surname include: *Angelika Trabert (born 1967), German physician and Paralympic equestrian * Bettina Trabert (born 1969), German chess player *Tony Trabert Tony may refer to: People and fictional characters * Tony (given name), including a list of people and fictional characters * Gregory Tony (born 1978), American law enforcement officer * Motu Tony (born 1981), New Zealand international rugby leagu ... (1930–2021), American tennis player, writer and sports announcer See also * Traber {{surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Star Of India (gem)
The Star of India is a 563.35- carat (112.67 g) star sapphire, one of the largest such gems in the world. It is almost flawless and is unusual in that it has stars on both sides of the stone. The greyish-blue gem was mined in Sri Lanka and is housed in the American Museum of Natural History in New York City. The milky quality of the stone is caused by the traces of the mineral rutile, which is also responsible for the star effect, known as asterism. The tiny fibers of the mineral, aligned in a three-fold pattern within the gem, reflect incoming light into the star pattern. History Mineralogist and Tiffany gem expert George Kunz (1856–1932) was commissioned by wealthy financier J.P. Morgan (1837–1913) to acquire an impressive gem collection for an exhibit at the Paris Exposition of 1900; the Star of India was among the stones Kunz procured. The Star of India is a huge blue star sapphire weighing 563.35 carats. It is cut en cabochon. A British Army officer brought it to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron
Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in front of oxygen (32.1% and 30.1%, respectively), forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. In its metallic state, iron is rare in the Earth's crust, limited mainly to deposition by meteorites. Iron ores, by contrast, are among the most abundant in the Earth's crust, although extracting usable metal from them requires kilns or furnaces capable of reaching or higher, about higher than that required to smelt copper. Humans started to master that process in Eurasia during the 2nd millennium BCE and the use of iron tools and weapons began to displace copper alloys, in some regions, only around 1200 BCE. That event is considered the transition from the Bronze Age to the Iron A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromium
Chromium is a chemical element with the symbol Cr and atomic number 24. It is the first element in group 6. It is a steely-grey, lustrous, hard, and brittle transition metal. Chromium metal is valued for its high corrosion resistance and hardness. A major development in steel production was the discovery that steel could be made highly resistant to corrosion and discoloration by adding metallic chromium to form stainless steel. Stainless steel and chrome plating (electroplating with chromium) together comprise 85% of the commercial use. Chromium is also greatly valued as a metal that is able to be highly polished while resisting tarnishing. Polished chromium reflects almost 70% of the visible spectrum, and almost 90% of infrared light. The name of the element is derived from the Greek word χρῶμα, ''chrōma'', meaning color, because many chromium compounds are intensely colored. Industrial production of chromium proceeds from chromite ore (mostly FeCr2O4) to produce ferro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
