GOLD19 Feb 2026 06:46
Gold mineralisation occurs primarily through hydrothermal processes where hot, metal-rich fluids migrate along structural pathways, depositing gold within quartz veins, veinlets, or disseminated in sulfide minerals (e.g., pyrite, arsenopyrite). It is often associated with orogenic systems (mountain building), where compression and, subsequently, extension, drive fluid movement, leading to, for instance, gold-bearing veins.
Gold concentrate is an intermediate, high-grade material produced by grinding and processing gold ore to remove waste rock, often appearing as "black sands" rich in iron. It reduces volume for easier transport, typically requiring further smelting or chemical processing (e.g., leaching) to produce doré bars.