Silver comes from mines, typically those found in mountainous regions. The world's most productive and long-term-producing silver mines are located in the South American Andes and in Mexico. It was silver mining in these regions which brought such wealth to Spain following the conquests of Hernan Cortes and Francisco Pizarro.
Silver is mined in sixty different countries today. Many people wear it and do not realize what goes into mining for this precious metal. Silver comes from a product of silver ore. Look here for more information: http://www.quotesilver.com/silver-origin.html