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Mmetla Masire: Okavango to resume diamond sales in January
Botswana’s state-owned Okavango Diamond Company (ODC) is set to resume diamond sales in January 2025, whether the market remains depressed or not. ODC managing director Mmetla Masire told Rough & Polished’s Mathew Nyaungwa on the side-lines of...
Today
Helga Pombal: Angola's Stardiam finds solution to the threat posed by lab-grown diamonds
Stardiam manager of production Helga Pombal told Rough&Polished's Mathew Nyaungwa on the sidelines of the Angola International Diamond Conference that lab-grown diamonds are creating a parallel market for more accessible stones, combined with lower...
11 november 2024
Ellah Muchemwa: ADPA to launch Africa's first diamond mining standard next year
The African Diamond Producers Association (ADPA), which is based in Luanda, Angola, and represents the interests of mainly African diamond producers and those with the potential to produce diamonds, will next year launch the Sustainable Development...
04 november 2024
Dmitry Fedorov: I want our jewelry to be displayed at a museum in the future
Dmitry Fedorov is the founder of the eponymous jewelry house. His main focus is the creation of Orthodox-inspired premium luxury jewelry of high artistic merit. He told Rough&Polished about his journey in the jewelry industry, about choosing the ‘Orthodox...
28 october 2024
Responsible business practices ‘no longer optional’, says WDC President Feriel Zerouki
The president of the World Diamond Council takes time out of her busy schedule to tell Rough&Polished readers about the critical work of the WDC. Zerouki, the first female present of the body, which includes all the important industry organizations among...
14 october 2024
Russian scientists are looking for ways to detect diamond ‘ghost pipes’
Evgeny Yakovlev, Head of the FCIARctic Laboratory of Environmental Radiology told TASS that the new method being developed by the Center has already shown good results in finding diamond pipes that cannot be detected by standard exploration methods.
There are many such ‘ghost pipes’ in the Arkhangelsk Province and Yakutia, where the largest diamond deposits in Russia are located. To search for them, scientists combined radiogeochemical and seismic methods of exploration. The radiogeochemical exploration block included studies of emissions of radon, a radioactive inert gas that enters the earth's surface through faults and is contained in the soil.
“Those areas, which have developed kimberlite bodies and explosion pipes, contain a system of faults and fractures, so the volumetric activity of radon in these territories is very high, there are even abnormal radon halos formed there and, accordingly, we are trying to identify patterns and find a connection with the explosion pipes in order to use these halos to further develop our methods for detecting kimberlite bodies,” Yevgeny Yakovlev told TASS.
As part of the new approach to diamond exploration, the Federal Center for Integrated Arctic Research is also applying microseismological studies, which, in combination with the radiogeochemical methods, are aimed at detecting the vertical projection of kimberlite bodies. Scientists note that such technology may prove to be more efficient and less costly than the conventional approach to diamond exploration.