The precious metal represented by the symbol 'Au' is gold. Its symbol comes from the Latin word "aurum," meaning "shining dawn." Gold has been highly valued throughout history for its beauty, rarity, and resistance to tarnishing. It is a popular choice for jewelry, currency, and investments, often considered a "safe haven" asset in times of economic uncertainty. Gold is also used in various industrial applications, including electronics and dentistry due to its conductivity and non-reactive properties. The allure of gold has transcended cultures and eras, making it a timeless symbol of wealth and status in many societies.