Quartz-linked gold has sourced some famous deposits, such as the placer gold that sparked the 19th-century California and Klondike gold rushes. Both deposits had eroded from quartz veins upstream.

Most of the time, gold takes the form of small flakes, but on rare occasions it can form larger nuggets weighing up to a few dozen kilograms. Exactly how it clumps together into these nuggets ...

The tyrannosaur of the minerals, this gold nugget in quartz weighs more than 70 ounces (2 kilograms). (Image credit: Heritage Auctions) Earthquakes have the Midas touch, a new study claims.

Experts think only 5 percent of the gold in North ... But about one in five visitors discover a gold flake, ... McDonald said to first look for quartz. The white rock often contains gold, ...

Interestingly enough, earthquakes have the ability to cause quartz to form large gold nuggets, a fact that has been well-known among scientists for decades. What has managed to elude them for just ...

Gold naturally forms in quartz — the second-most abundant mineral in Earth's crust after feldspar. But unlike other types of gold deposits, those found in quartz often cluster into giant nuggets ...

Gold prospecting is an active recreation involving group outings in the summer to gold-laden areas of North Dakota and South Dakota, usually on creeks and rivers with quartz outcroppings.