Gunda Misty. Diamonds. August 21st , 2017.
Canada's first diamond mine is the Ekati mine, which is 300 miles northeast of Yellowknife. It opened in 1998 and is primarily owned by the Australian mining conglomerate BHP Billiton, who own an 80% share. The minority share of 20% is owned by Charles Fipke and Stewart Blusson (10% each), who are the geologists who discovered the mines. It has yielded 40 million carats (8,000 kg/17,636 lbs.) out of six open pits, between 1998 and 2008.
World Diamond Council imposed a complete restrain upon trade in conflict diamonds in January, 2001. During the same time, the Kimberley Process Certification Scheme (KPCS) was given shape in order to impose stringent regulations on the export and import of diamonds and to introduce a legislation all over the world compelling every country to accept only those packages of diamond that are officially sealed.
Let's get the technicality out of the way right at the onset, shall we? These 'brown' diamonds get their color due to equal spacing of nitrogen atoms within the carbon lattice of the stone. The more the concentration of the atoms, the browner the stone appears. These brown diamonds are not easily found and can easily be mistaken for other colored gemstones. They are found mostly in the Australian diamond mines (about 0.1% of the total diamonds mined there). They come in a variety of color combinations, ranging from dark to light shades in the same color family. The most prominently found combinations of these brown diamonds are given below:
In the case of a blue colored diamond some of the nitrogen has been replaced by Boron. Boron will reflect the blue wavelength of the light spectrum. The higher the concentration of boron the more color will be showed. At a level of one or a few boron atoms for every million-carbon atom, an attractive blue color results.
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