Silver has been mined for over 5000 years and was used as currency by ancient Greek empires. It is a soft, white metal that is malleable and highly conductive. In India, silver can be traded through futures and options contracts on the MCX exchange, with contract sizes of 30kg, 5kg, and 1kg and a tick size of Rs. 1 per kg. Key factors that influence silver prices include production and supply/demand balances, industrial usage, inflation levels and the value of the U.S. dollar, as well as prices for gold and silver-producing stocks.