( CNN ) -- The term nugget does n't quite do it justice . This thing is more like a whopper . A more than 6-pound chunk of gold sold over the weekend for $ 400,000 , according to the San Francisco Chronicle . An anonymous Bay Area buyer snatched up the `` Butte nugget '' -- named for the Northern California county in which it was discovered this summer -- at the San Francisco Fall Antiques Show . The huge hunk of bullion went on public display Thursday , piquing the interest of hundreds who flocked to the show to get a peek . `` Nuggets like this do n't come along every day , '' said David McCarthy , the nugget 's appraiser . `` I really did n't believe that I would see a California nugget of this size unearthed during my lifetime . '' McCarthy told the Chronicle that the buyer is `` a prominent Bay Area collector '' who specializes in historical items . A fitting specialty , given that his collection is now one for the history books . And that 's a distinction that is worth its weight in gold .
`` the San Francisco Chronicle nugget '' nets $ 400,000 K at a California antique show . The 6-pound gold chunk was discovered in Bay Area in the weekend . Buyer wishes to remain anonymous .