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Carbonado. Typically black, can be grey, various shades of green and brown sometimes mottled. Carbonado, commonly known as black diamond, is one of the toughest forms of natural diamond. It is an impure, high-density, micro-porous form of polycrystalline diamond consisting of diamond, graphite, and amorphous carbon, with minor crystalline ...
Black Diamond Equipment is a manufacturer of equipment for climbing, skiing, and mountain sports, based in Utah, United States. The company also has a global office in Innsbruck, Austria. The company is owned by Clarus Corporation, which also owns Pieps, ClimbOn! Skincare, and Sierra Bullets. [1] [2]
Queen's Gambit. The Queen's Gambit Declined (or QGD) is a chess opening in which Black declines a pawn offered by White in the Queen's Gambit : 1. d4 d5. 2. c4 e6. This is known as the Orthodox Line of the Queen's Gambit Declined. [1] When the "Queen's Gambit Declined" is mentioned, it is usually assumed to be referring to the Orthodox Line ...
The Black Diamond Coal Mining Company was formed in 1861, consolidating the Cumberland and Black Diamond coal mines in the region of Mount Diablo, in Contra Costa County, California. [1] During its years of operation as a mining company, it established three towns: Nortonville, California, Southport, Oregon, and Black Diamond, Washington.
The Enigma [1] is the largest polished black diamond in the world. [2] Containing 55 facets and weighing in at 555.55 carats (111.11 grams). The Enigma was commissioned and inspired by the Belgian diamondman Ran Gorenstein, who is the president of the international fintech company RGM Global Ventures, and completed in June 2004 after several ...
Korloff Noir. The Korloff Noir is one of the world's largest known black diamonds. It is an 88-carat diamond, with 57 edges. Before it was cut and polished, it had 421 carats. It is named for the Korloff -Sapojnikoff family, members of the Russian nobility, who once owned it. In 1978, Daniel Paillasseur, a French jeweller, purchased it. [1]
Open Sicilian. The Najdorf Variation [1] ( / ˈnaɪdɔːrf / NY-dorf) of the Sicilian Defence is one of the most popular, reputable, and deeply studied of all chess openings. [2] [3] Modern Chess Openings calls it the "Cadillac" or "Rolls-Royce" of chess openings. [4] The opening is named after the Polish-Argentine grandmaster Miguel Najdorf ...
The Dunst Opening is a chess opening in which White opens with the move: . 1. Nc3. This fairly uncommon opening may have more names than any other: it is also called the Heinrichsen Opening, Baltic Opening, Van Geet Opening, Sleipnir Opening, Kotrč's Opening, Meštrović Opening, Romanian Opening, Queen's Knight Attack, Queen's Knight Opening, Millard's Opening, Knight on the Left, and (in ...