黄金能“长”出来？我国科学家新发现

Group 1 - The article discusses a breakthrough by Chinese scientists in capturing the process of gold growth from common minerals, specifically pyrite, through a natural mechanism that resembles alchemy [1][4]. - It is estimated that the Earth's gold reserves are approximately 4.8 billion tons, which, if evenly distributed, would allow each person to receive about 600 kilograms of gold. However, 99% of this gold is trapped in the Earth's core, over 2000 kilometers underground [2]. - The process involves surface water or underground hydrothermal fluids flowing through rock fissures, which can oxidize and dissolve ancient geological gold deposits, forming soluble gold complexes that enter the fluid [4][6]. Group 2 - A unique "nano workshop" is formed at the interface when this special fluid flows over the surface of pyrite, which has a strong adsorption capacity, allowing it to capture and aggregate gold atoms from the dilute fluid, leading to the growth of nanoscale gold particles [6]. - This discovery opens new possibilities for developing more precise and environmentally friendly technologies to extract gold from traditional waste minerals and may guide future global searches for new gold deposits [6].