Trisulfur anion helps explain gold deposits on Earth

(Phys.org)—People have been excavating gold for thousands of years as a precious rare metal. Gold is in relatively low abundance in the Earth's crust likely coming from the metallic core and from meteorites. For reasons that are not entirely known, even though the average amount of gold throughout the Earth's crust is small, there are deposits containing gold in significantly greater concentrations than the crust's average abundance. These deposits tend to be in locations of geological act