KEDOUGOU, Senegal (AP) — The quickest way to separate gold from rock, Sadio Camara says, is with a drop of mercury. She empties a dime-sized packet of the silvery liquid into a plastic bucket of muddy ...

Okay, so we are not truly dissolving the gold, we are actually forming an alloy between the gold and the mercury (called an amalgam). This process is not only cool to look at, but it also is really ...

For hundreds of years, the Amazon has been exploited for its gold. Today, the precious metal is just as sought after, but the remaining tiny gold particles are much harder to find. Mining often ...

A small, leafy, green peanut plant grows out of a patch of dirt. When David McLagan’s team sampled mercury isotopes in cassava, maize, and peanut crops (like the one shown here) grown downwind of a ...

BOGOTA, Colombia (AP) — Peruvian customs officials have seized a record-breaking shipment of illegal mercury, exposing a cross-border smuggling network that is fueling one of the Amazon’s most ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. KEDOUGOU, Senegal (AP) — The quickest way to ...