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Oppenheimer Diamond
The Oppenheimer Diamond, a nearly perfectly formed yellow diamond crystal, is one of the largest uncut diamonds in the world, and measures approximately . It was discovered in the Dutoitspan Mine, Kimberley, South Africa, in 1964. Harry Winston acquired the stone and presented it to the Smithsonian Institution in memory of Sir Ernest Oppenheimer. File:Oppenheimer Diamond 03 (cropped).jpg, File:DiamanteEZ.jpg See also * List of diamonds Diamond (gemstone), Diamonds become famous typically for some combination of their size, color and quality. Diamonds occur naturally in many different colors, so the largest diamond of a particular color may not be large in absolute terms, but it ... References External links Oppenheimer Diamondat the Smithsonian, with better closeup photosAnother view [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Du Toit's Pan
Du Toit's Pan, now usually Dutoitspan, is one of the earliest diamond mining camps at what is now Kimberley, South Africa. It was renamed Beaconsfield, which existed as a separate borough from Kimberley itself until Kimberley and Beaconsfield were amalgamated as the City of Kimberley in 1912. An early map drawn by George Paton on the eve of the discovery of diamonds mentions 'Teuzpan' which, when pronounced in the German way, sounds the way local Dutch/Afrikaans Afrikaans (, ) is a West Germanic language that evolved in the Dutch Cape Colony from the Dutch vernacular of Holland proper (i.e., the Hollandic dialect) used by Dutch, French, and German settlers and their enslaved people. Afrikaans gra ...-speaking farmers would have pronounced (Du) Toit's Pan.Hand-drawn map by George Paton, Africana Library, Kimberley The name refers also to one of the major mines in Kimberley, the Dutoitspan mine. It also applies to the main road extending southwards from the central busin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond
Diamond is a Allotropes of carbon, solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Another solid form of carbon known as graphite is the Chemical stability, chemically stable form of carbon at Standard conditions for temperature and pressure, room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions. Diamond has the highest Scratch hardness, hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. They are also the reason that diamond anvil cells can subject materials to pressures found deep in the Earth. Because the arrangement of atoms in diamond is extremely rigid, few types of impurity can contaminate it (two exceptions are boron and nitrogen). Small numbers of lattice defect, defects or impurities (about one per million of lattice atoms) color diamond blue (bor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smithsonian Institution
The Smithsonian Institution ( ), or simply the Smithsonian, is a group of museums and education and research centers, the largest such complex in the world, created by the U.S. government "for the increase and diffusion of knowledge". Founded on August 10, 1846, it operates as a trust instrumentality and is not formally a part of any of the three branches of the federal government. The institution is named after its founding donor, British scientist James Smithson. It was originally organized as the United States National Museum, but that name ceased to exist administratively in 1967. Called "the nation's attic" for its eclectic holdings of 154 million items, the institution's 19 museums, 21 libraries, nine research centers, and zoo include historical and architectural landmarks, mostly located in the District of Columbia. Additional facilities are located in Maryland, New York, and Virginia. More than 200 institutions and museums in 45 states,States without Smithsonian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kimberley, South Africa
Kimberley is the capital and largest city of the Northern Cape province of South Africa. It is located approximately 110 km east of the confluence of the Vaal and Orange Rivers. The city has considerable historical significance due to its diamond mining past and the siege during the Second Anglo-Boer war. British businessmen Cecil Rhodes and Barney Barnato made their fortunes in Kimberley, and Rhodes established the De Beers diamond company in the early days of the mining town. On 2 September 1882, Kimberley was the first city in the Southern Hemisphere and the second in the world after Philadelphia, Pennsylvania in the United States to integrate electric street lights into its infrastructure. The first stock exchange in Africa was built in Kimberley, as early as 1881. History Discovery of diamonds In 1866, Erasmus Jacobs found a small brilliant pebble on the banks of the Orange River, on the farm ''De Kalk'' leased from local Griquas, near Hopetown, which was his f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harry Winston
Harry Winston (March 1, 1896December 8, 1978) was an American jeweler. He donated the Hope Diamond to the Smithsonian Institution in 1958 after owning it for a decade. He also traded the Portuguese Diamond to the Smithsonian in 1963 in exchange for 3,800 carats of small diamonds. Winston founded the Harry Winston Inc. in New York City in 1932. He had been called by many the "King of Diamonds". History Winston's father Jacob started a small jewelry business. He and Winston's mother were Jewish immigrants to the United States from the Russian Empire. While growing up, Harry worked in his father's shop. When he was twelve years old, he recognized a two-carat emerald in a pawn shop, bought it for 25 cents, and sold it two days later for $800. Winston started his business in 1920 and opened his first store in New York City in 1932. Winston's jewelry empire began in 1926, with his acquisition of Arabella Huntington's jewelry collection, for $1.2 million. The wife of railroad mag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernest Oppenheimer
Sir Ernest Oppenheimer (22 May 1880 – 25 November 1957), KStJ was a diamond and gold mining entrepreneur, financier and philanthropist, who controlled De Beers and founded the Anglo American Corporation of South Africa. Career Ernest Oppenheimer was born in Landkreis Aichach-Friedberg, Grand Duchy of Hesse, German Empire, the son of Edward Oppenheimer, a cigar merchant, and his wife, Nanette (née Hirschhorn) Oppenheimer. He began his working life at 17, when he entered Dunkelsbuhler & Company, a diamond brokerage in London. His efforts impressed his employer and in 1902, at the age of 22, he was sent to South Africa to represent the company as a buyer in Kimberley, of which he went on to become the mayor from 1912 to 1915. In this role, he helped raise the manpower for the Kimberley Regiment for service during World War I. He became great friends with William Lincoln Honnold, an American engineer and chairman of Transvaal Coal Trust, Brakpan Mines, Springs Mines and The New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Diamonds
Diamond (gemstone), Diamonds become famous typically for some combination of their size, color and quality. Diamonds occur naturally in many different colors, so the largest diamond of a particular color may not be large in absolute terms, but it may still be considered very desirable. Diamonds may also have high valuations or sale prices, or go on to have a noteworthy ownership history, but this will tend to occur for diamonds that had some outstanding characteristic to begin with. As new diamonds are discovered, the uniqueness of existing ones may diminish and there is no agreed-upon measure of a large or a high-quality diamond, so a strict inclusion criteria for notable diamonds is not attainable. Diamond A diamond is a Allotropes of carbon, solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. At Standard conditions for temperature and pressure, room temperature and pressure, another solid form of carbon known as graphite is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oppenheimer Family
Oppenheimer is a surname. Notable people with the surname include: In arts and media * Alan Oppenheimer (born 1930), American film actor * Andrés Oppenheimer (born 1951), Argentine author and journalist known for his analysis of Latin American politics * Jerry Oppenheimer, American biographer * Jess Oppenheimer (1913–1988), American radio and television writer, producer, and director, creator of ''I Love Lucy'' * Joel Oppenheimer (1930–1988), American writer * Joshua Oppenheimer (born 1974), American film director * Lillian Oppenheimer (1898–1992), American origami pioneer * Max Oppenheimer (1885–1954), Austrian painter and graphic artist * Stephen Oppenheimer (born 1947), British paediatrician, geneticist, and writer on genetics and human prehistory In business Minerals * Bernard Oppenheimer (1866–1921), South African and British diamond merchant and philanthropist, brother of Ernest * Ernest Oppenheimer (1880–1957), diamond and gold mining entrepreneur and financ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jewelry In The Smithsonian Institution
Jewellery ( UK) or jewelry (U.S.) consists of decorative items worn for personal adornment, such as brooches, rings, necklaces, earrings, pendants, bracelets, and cufflinks. Jewellery may be attached to the body or the clothes. From a western perspective, the term is restricted to durable ornaments, excluding flowers for example. For many centuries metal such as gold often combined with gemstones, has been the normal material for jewellery, but other materials such as glass, shells and other plant materials may be used. Jewellery is one of the oldest types of archaeological artefact – with 100,000-year-old beads made from '' Nassarius'' shells thought to be the oldest known jewellery.Study reveals 'oldest jewellery' , '' |
Diamonds Originating In South Africa
Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Another solid form of carbon known as graphite is the chemically stable form of carbon at room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions. Diamond has the highest hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. They are also the reason that diamond anvil cells can subject materials to pressures found deep in the Earth. Because the arrangement of atoms in diamond is extremely rigid, few types of impurity can contaminate it (two exceptions are boron and nitrogen). Small numbers of defects or impurities (about one per million of lattice atoms) color diamond blue (boron), yellow (nitrogen), brown (defects), green (radiation exposure), purple, pink, orange, or red. Diamond also has a ver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1964 In South Africa
The following lists events that happened during 1964 in South Africa. Incumbents * State President: Charles Robberts Swart.Archontology.org: A Guide for Study of Historical Offices: South Africa: Heads of State: 1961-1994 (Accessed on 14 April 2017) * : . * Chief Justice: |
Yellow Diamonds
Yellow is the color between green and orange on the spectrum of light. It is evoked by light with a dominant wavelength of roughly 575585 nm. It is a primary color in subtractive color systems, used in painting or color printing. In the RGB color model, used to create colors on television and computer screens, yellow is a secondary color made by combining red and green at equal intensity. Carotenoids give the characteristic yellow color to autumn leaves, corn, canaries, daffodils, and lemons, as well as egg yolks, buttercups, and bananas. They absorb light energy and protect plants from photo damage in some cases. Sunlight has a slight yellowish hue when the Sun is near the horizon, due to atmospheric scattering of shorter wavelengths (green, blue, and violet). Because it was widely available, yellow ochre pigment was one of the first colors used in art; the Lascaux cave in France has a painting of a yellow horse 17,000 years old. Ochre and orpiment pigments were used t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
