Mining of Natural Diamonds

The primary source of diamonds is rock of volcanic origin, which is called kimberlite after the first important deposit discovered in South Africa. These deposits are strongly worn away by weathering and erosion and therefore most of the diamonds are to be found in the surrounding areas in old water courses, alluvial deposits and sometimes under water on seabeds. 

Standard underground and open cast mining techniques are used for extraction on land. Underwater mining is practised off the coast of Namibia. There diamond-containing clays are sucked up from the seabed and immediately concentrated on site. 

The gangue is separated by mechanical methods and the diamonds concentrated by processes which permit 

Without the high regard, that gem diamonds enjoy in our society, the extraction of natural diamonds would be completely uneconomic. Even in the rich Kimberley seams in South Africa, only 2.5 carats (0.5 g) of diamonds are obtained per t of processed rock, only 0.4 carats of diamond being obtained in 1985 in the Premier Mine (also in South Africa). 

The alluvial deposits on the cost of Namibia together with the adjacent Namaqualand to the South is the richest gem diamond source in the World. 

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For elimination of the given lack in Ukraine the complex of the equipment and instrumentation was built [5. .. 8], However, on its manufacturing and intrusion under the solution CC CPSU the moratorium was overlapped, as from the party USSR there could be a competition to world corporations held by a mining of natural diamonds. 

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