For silver the more important deposits commercially are such compounds as the minerals tetrahedrite and argentite (silver sulfide, Ag 2 S), which is usually associated with other sulfides such as those of lead and copper, as well as several other sulfides, some of which contain antimony as well.
France is the most visited European nation with 83.7 million international tourist arrivals in 2014. Established in the late 1700s, the Louvre Art Museum in Paris is one of the most frequented tourist sites in all of France. Europe is a fascinating continent, and it attracts millions of tourists annually.
France has been the world's most popular tourist destination for over twenty years (83 million visits in 2012). Metropolitan France is in Western Europe sharing borders with Belgium, Luxembourg and Germany to the northeast, Switzerland to the east, Italy to the south-east. Spain and the small country of Andorra are to the south-west, across the Pyrenees mountain range.