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 top ten nations in order of their friendliness to visitors from elsewhere are: Iceland, New Zealand, Morocco, Macedonia, Austria, Senegal, Portugal, Bosnia and Herzegovina, Ireland and Burkina Faso. Iceland's 319,000 people are ranked the friendliest in the world to foreign visitors. 2  Bolivia is the least welcoming country in the world. 3  The UK was ranked as the 55th most welcoming place to visit, far behind Ireland at number 9.