Used in electronics for reliable conductive connections in connectors, switches, and printed circuit boards due to excellent corrosion resistance and conductivity. Common in aerospace and high-reliability devices where performance under stress is critical. Widely applied in dentistry for crowns, bridges, and fillings because of biocompatibility and resistance to tarnish. Key material in jewelry and decorative items for its luster, durability, and ability to be finely shaped. Used in medicine, especially in treatment of rheumatoid arthritis through gold salts (chrysotherapy). Applied in nanotechnology as gold nanoparticles for drug delivery, biosensors, and medical imaging due to unique optical and surface properties. Used in glassmaking to produce red or purple hues and in architectural glass for solar control coatings. Serves as a reflective coating in infrared shielding, visors, and satellite components. Important in catalysis, especially in oxidation reactions and environmental cleanup processes. Used as a financial asset and store of value, often in the form of bullion or coins, influencing industrial demand.