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.
The European hotspot was streets ahead of the second most visited country in the world - the US - beating it by almost 15million visitors. While France, the US and Spain made the top three list of the most visited countries, the UK took eighth place, welcoming 31.2million visitors in 2013, a new record.