A MASSIVE gold nugget that could be worth upwards of half a million dollars has been unearthed in Ballarat. See your ad here The nugget, weighing slightly more than five kilograms (177 ounces), was discovered by a local prospector on Wednesday morning, who rushed it to the Ballarat Mining Exchange Gold Shop. The exact location and the identity of the lucky prospector remain secret, but gold shop owner Cordell Kent said the nugget was found within 30 kilometres of the Ballarat CBD. It was found about 60 centimetres below the surface, with the prospector using a state-of-the-art detector worth more...