Shmith expects collectors may already be eyeing a potential purchase of the Ballarat nugget because of its rarity . Amateur Australian prospector found 1 % golden ore . Experts say worth of gold nugget at least $ 300,000 . Gold first found around city of Ballarat in 1851 .
Amateur Australian prospector found 1 % golden ore . Experts say worth of gold nugget at least $ 300,000 . Gold first found around city of Ballarat in 1851 .