It closes at $ 1 an ounce in electronic trading on Wednesday . Value of the ore , if any , is about $ 140,000 . The winning team pays $ 1 for the nugget . The largest nugget ever mined in California weighed 195 pounds .
Gold closes at $ 1,393.40 an ounce in electronic trading on Wednesday . Value of the gold , if melted , is about $ 140,000 . The winning bidder pays $ 400,000 for the nugget . The largest nugget ever mined in California weighed 195 pounds .