Tom’s Baby remains today the largest gold nugget ever found in Colorado,” the Town of Breckenridge explained when Prospector Park opened in 2015.

One of the largest gold nuggets ever found in Colorado is on display at the National Mining Hall of Fame and Museum. To stream 9NEWS on your phone, you need the 9NEWS app. Download the 9NEWS app ...

The largest orogenic gold nuggets found to date weigh around 130 pounds (60 kilograms), Voisey said. Gold deposits in a quartz crystal against a black background.

Much of the world's gold deposits are found in rocky veins of quartz, like the white layer in the image above. (Flickr: James St John, Main vein, CC BY 2.0)Now, research by Dr Voisey and his ...

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 ...