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 ...

Earthquakes may cause gold nuggets to form in quartz by generating an electric field that attracts gold dissolved in fluid forced up from deep underground. Enormous gold nuggets are often associated ...

Gold has always been a hot commodity. But these days, finding a nugget isn’t too tricky: Much of the world’s gold is mined from natural veins of quartz, a glassy mineral that streaks through large ...

Scientists have discovered exactly how earthquakes trigger quartz into forming large gold nuggets — finally solving a mystery that's puzzled researchers for decades. Gold naturally forms in quartz — ...