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.
Flag of Voronezh Oblast
According to Resolution #292-II adopted by the Voronezh City Duma on September 26, 2008 for the city flag, the argent (silver) of the jug and water is symbolic of nobility, purity, justice, generosity and peace. Gules (red) of the field is the colour for vital force, fortitude, festivity, beauty and labour which characterises the city of Voronezh as an industrially developed centre. The golden of the rocks signifies harvest, exuberance and fertility, symbolising a well developed agrarian sector of economy. At the same time the gold represents nobility, respect, honour, mental power, light and spirituality.