Taking inspiration from a centuries-old-process for extracting gold from ore, researchers have used gold nanoparticles to strip mercury from contaminated water (ACS Nano, DOI: 10.1021/nn204313a).

“Ibrahim” is a 12-year-old boy working in a small Tanzanian gold mine. One of his main jobs is to separate gold from the ore by using mercury, a toxic metal. Using his bare hands, he mixes mercury ...

Unlike alluvial gold, which is found as very small flakes on riverbanks, gold-bearing rocks have to be dug out of the ground. We're after pure gold, but rock that contains gold also includes lots of ...

Kristin Sippl does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

“Ibrahim” is a 12-year-old boy working in a small Tanzanian gold mine. One of his main jobs is to separate gold from the ore by using mercury, a toxic metal. Using his bare hands, he mixes mercury ...