magine it! You’re walking along and nearly trip over a 17-pound (7.85 kilograms) gold nugget. File that under a most improbable gold bonanza. But that’s exactly how it played out for one lucky sun-of-a-gun farmer in China. Berek Sawut, a Kazak herdsman from Qinghe County in Altay Prefecture told Chinese news agency Xinhua that he found the giant nugget “practically lying on bare ground.” The area is in China’s far western Xinjiang Uygur region. That gold nugget, assuming it’s at least 80% pure, would be worth 1.6 million yuan ($255,313 U.S. dollars), says Xinhua, which also points out that a...