The historic mine waste from the Witwatersrand still contains over six billion tonnes of gold content. That's according to Dr Steve Chingwaru whose groundbreaking research has sparked interest from mining companies around the globe.
Dr Chingwaru speaks to Vuyo Mvoko about the research.
Tune into Newzroom Afrika DStv channel 405 for more.
Негізгі бет Six billion tonnes of gold content in historic Witwatersrand mine waste
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