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Brilliance is the life of the diamond. Brilliant diamonds sparkling with light, catching people's eyes, adding elegance and glamor to a woman's whole being. Diamond brilliance is what make it amazingly beautiful....
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Canada's quest for diamonds looks like one of the biggest stories in Canada for the next 10, 20 years – and beyond. The first diamond discovery in 1991 happened at Point Lake near Lac de Gras in the Northwest Territories, some 300 kilometres northeast of Yellowknife.....
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The resulting chemical reaction causes a "carbon rain" in which carbon atoms fall onto the seed and arrange themselves in the crystalline structure same as the original diamond. The diamonds produced by this process were already tough but the researchers toughened it up further by subjecting them to 2000°C and 5-7 gigapascals (up to 70,000 times atmospheric pressure). After this, the man-made diamonds were 50% harder than conventional diamonds. But making diamonds was not the researcher's main goal: "Our group is interested in the behaviour of materials at extreme pressures and temperatures," said co-researcher Dr Russell Hemley....
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Diamond Structure and Properties...
Chemical composition : C, carbon
Hardness : 10 Mohs' scale, 56-115 Knoop hardness number (GPa), 10,000 Brooks identerscale.
Crystallography : Isometric. Crystals sometimes sharp octahedral, rhombic
dodecahedral, cubes, twinning, plates, and combinations with other forms. Crystals modified often rounded and distinguished by the presents of triangular shaped pits on the faces of the octahedral shaped crystals. These trigons were once thought to be the result of etching are now believed to be part of the growth process....
Chemical composition : C, carbon
Hardness : 10 Mohs' scale, 56-115 Knoop hardness number (GPa), 10,000 Brooks identerscale.
Crystallography : Isometric. Crystals sometimes sharp octahedral, rhombic
dodecahedral, cubes, twinning, plates, and combinations with other forms. Crystals modified often rounded and distinguished by the presents of triangular shaped pits on the faces of the octahedral shaped crystals. These trigons were once thought to be the result of etching are now believed to be part of the growth process....
A trail of
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