黄金急升突破4890美元，A股贵金属大爆发，紫金矿业大涨6%

Group 1 - The article highlights a significant short-term surge in gold prices, with spot gold reaching $4890 per ounce and New York futures surpassing $4900 per ounce, while silver also saw an increase of 8% to $85 per ounce [1][2] - The A-share precious metals sector experienced a strong rebound, with notable stock performances including Xiaocheng Technology rising by 17%, Hunan Gold hitting the daily limit, and Zijin Mining increasing by over 6% [2][3] Group 2 - Tianfeng Securities suggests that gold may enter a period of wide fluctuations in the short term but is expected to return to an upward trend within the year, supported by ongoing long-term demand from global central banks [4] - New Lake Futures also indicates that the medium to long-term support for gold prices remains intact, citing geopolitical risks and the uncertainty of U.S. government policies as key factors, while long-term structural strength is driven by worsening global debt sustainability and the trend of de-dollarization [4]