Chalcopyrite, the principal copper-bearing mineral in many porphyry deposits, has long presented a challenge to metallurgists owing to the formation of a passivating sulphur layer that retards metal ...

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At a laboratory in Newark, New Jersey, a gray liquid swirls vigorously inside a reactor the size of a small watermelon. Here, scientists with the mining technology startup Still Bright are using a ...

"Our preliminary tracer tests of the wellfield in the third quarter 2018 exhibited robust percolation rates through the orebody. These results were as good as, and in some cases better than, modelled ...