Gold is much less reactive and doesn't naturally form sulfides, so it may grow much ... they're also a repository to safeguard our natural history for future generations of scientists, who can ...

But these days, finding a nugget isn’t too tricky: Much of the world’s gold is mined from natural veins of quartz ... would start appearing in a solid form atop the quivering slabs.

To study how earthquakes help form the gold nuggets ... “In essence, the quartz acts like a natural battery, with gold as the electrode slowly accumulating more gold with each seismic event ...