Period 6 element point of −38.83 °C and boiling point of 356.73 °C, mercury has one of the narrowest ranges of its liquid state of any metal. Mercury occurs in deposits throughout the world mostly as cinnabar (mercuric sulfide). The red pigment vermilion is mostly obtained by reduction from cinnabar. Cinnabar is highly toxic by ingestion or inhalation of the dust. Mercury poisoning can also result from exposure to water-soluble forms of mercury (such as mercuric chloride or methylmercury), inhalation of mercury vapor, or eating seafood contaminated with mercury. Mercury is used in thermometers, barometers, manometers, sphygmomanometers, float valves, mercury switches, and other
Glassworks Museum of the Ore Mountains in 1750, of Purschenstein Castle was placed under protection. Through grants the house, which is owned by the parish, was refurbished and, with the help of the local branch of the Ore Mountain Club, turned into a museum. In May 1996 the Ore Mountain Glassworks Museum ("Erzgebirgische Glashüttenmuseum") opened its first exhibition. It contained pieces from the roughly 800-year-old glassmaking industry in the Ore Mountains. The exhibition focusses particularly on the history of the Heidelbach Glassworks from 1488 to 1827. Since opening, the museum has also been enhanced by the replica of a glass melting furnace in an adjoining building,