The colors of rubies and emeralds are so striking that they define shades of red and green—ruby red and emerald green. But ...

Both rubies and emeralds are minerals, which is a type of rock with a consistent chemical composition and a highly ordered ...

One feature of compounds made with transition metals is their intense colour. There are many examples in nature, including ...

Researchers from the University of Waterloo have discovered that a special form of charcoal is highly effective at absorbing ...

Has he left?” enquired Minister of Minerals and Petroleum, Gwede Mantashe, after not seeing Cape Town executive mayor Geordin Hill-Lewis in attendance when he took the stage. “Many important speakers ...

South Africa’s mineral minister has called for an African-wide mineral blockade against the U.S. in response to Trump’s aid ...

Mining research council Mintek CEO Dr Molefi Motuku has emphasised the need to leverage South Africa’s critical minerals resources, estimated to be worth more than $2.5-trillion, to drive economic ...

Investing in African Mining Indaba presenters on Monday spoke repeatedly of the need for Africa to add value to its metals ...

Minister of Mineral and Petroleum Resources, Gwede Mantashe, has hit back at threats by US President Donald Trump over ...