The precious metal with the symbol 'Au' is gold. The symbol is derived from the Latin word "aurum," which means "shining dawn." Gold has been historically valued for its rarity, luster, and malleability, making it ideal for crafting jewelry, currency, and various decorative items. Its resistance to corrosion and tarnishing further enhances its desirability. Gold is often referenced in investment contexts, with individuals and institutions using it as a means of preserving wealth or as a hedge against inflation. Additionally, gold has several industrial applications, including electronics and dentistry.