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.
AAG Gold Medal
The AAG Gold Medal is the highest award given by the international Association of Applied Geochemists (AAG). It recognizes recipients' lifetime achievements, or significant contributions to geochemistry and its applications. The medal is minted with the name of the recipient and the year of the award from two troy ounces of silver bullion.