The precious metal with the chemical symbol 'Au' is gold. This element is known for its distinctive yellow hue and is highly valued for its rarity, beauty, and malleability. Gold has been used for thousands of years for currency, jewelry, and decorative purposes. It is also chemically inactive, meaning it does not easily corrode or tarnish, making it an enduring choice for various applications. Gold's significant role in economies and cultures across the globe, as well as its use in electronics and dentistry, underscores its importance beyond mere ornamentation.