Add Yahoo as a preferred source to see more of our stories on Google. Hugo Flores analyses a rock recently extracted from the mine in San Joaquin, Mexico (Associated Press/Fernando Llano) A drill ...

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 ...

Illegal gold mining is spreading into new parts of Peru's Amazon, and experts say it is driving a growing environmental and health crisis.

More than a century after the Mountain West’s silver and gold rushes, mercury used to process those metals is still moving ...

This is an archived article and the information in the article may be outdated.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 ...