Scientists have finally solved a long-standing mystery about the geologic process behind these large pieces of gold found in quartz rock. From a report: Gold has always been a hot commodity. But these days, finding a nugget isn't too tricky: Much of
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 ch… [+1363 chars]
