Mercury sulfide Mercury sulfide Mercury sulfide, mercuric sulfide, mercury sulphide, or mercury(II) sulfide is a chemical compound composed of the chemical elements mercury and sulfur. It is represented by the chemical formula HgS. It is virtually insoluble in water. HgS is dimorphic with two crystal forms: Crystals of red, α-HgS, are optically active. This is caused by the Hg-S helices in the structure. β-HgS is precipitated as a black powder when HS is bubbled through solutions of Hg(II) salts. β-HgS is unreactive to all but concentrated acids. Mercury metal is produced from the cinnabar ore by roasting in air and condensing the
Ore Mountains 2007 the Ore Mountains and West Saxony is the most important Saxon holiday destination after the cities, and tourism is an important economic factor in the region. Since 2004 the Ore Mountain Tourist Association ("Tourismusverband Erzgebirge") has offered the Ore Mountain Card ("ErzgebirgsCard") with which over 100 museums, castles, heritage railways and other sights may be visited free of charge. The culture of the Ore Mountains was shaped mainly by mining that goes back to the Middle Ages. The old saying, coined here, that "everything comes from the mine" ("Alles kommt vom Bergwerk her!") refers to many areas of life