(Kitco NewsWire) - Spot gold and silver prices rallied sharply after the close Wednesday, as softer U.S. labor data, a weaker U.S. dollar and lower Treasury yields offset lingering expectations that the Federal Reserve could still tighten policy again in September. At the time of writing, spot gold was trading near $4,244.00 an ounce, up 4.11% on the session, while spot silver was trading at $61.880, up 4.16%.The latest U.S. data left the market with a split macro signal. July private payrolls r