Silver
Silver is a chemical element with symbol Ag (from the Latin "", derived from the Proto-Indo-European "h₂erǵ": "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc refining.
Alpha Sigma Tau
Alpha Sigma Tau's colors are emerald green and purest gold, while its flower is the yellow rose, its jewel is the pearl, and its symbol the anchor. The sorority does not have an official mascot. The badge is a black, kite-like polygon with a golden ΑΣΤ inscribed on the enamel, bordered by gold inlaid with small pearls. Members who perform further duties may order different badges with different jewels on the badge's four points – ruby for volunteers, yellow topaz for NPC delegates, and emerald for National Council members and officers, while the national president's badge has a double border of gold inlaid with pearls.