Rock salt (halite) forms crystals of large dimensions that narosli in cracks and cavities formed in the rock.In the upper reaches of the river Aller Germany and the US city of Detroit, were found large cubes of halite, which exceed one cubic meter.As a rule, it can be found exclusively cubic crystals of salt, which are often subject to deformation and have rounded edges.Occasionally you can meet octahedra, stalactites and units with large grains.
should be noted that only a few granules of rock salt can be colored flame of a gas burner, which has no color, yellow.Halite have a very good indicator of solubility in water.It should be noted that in the saturated solution contains about thirty-six percent NaCl, and one liter of sea water contains about 27 g of NaCl.
Rock salt: the formation of deposits
In the Permian period on the territory of present-day Germany dried up sea.On his first day of sparingly soluble salts is deposited, then - the most soluble.After major new layers of sediments were deposited on the salts, the lightest rock salt gradually rose into the rock, forming the so-calleddiapirs (salt domes).Similarly formed and deposit in Russia (Solikamsk), Texas (Ebro basin), Spain, the Carpathians.As a result of the fact that the bloom covered the soil in desert and steppe areas, as well as on the shores of the salt lakes, formed the so-calledsalt licks.Sublimation led to the formation of salt around volcanoes (eg Vesuvius).Here you can find crystals of blue and purple, the length of the ribs which is slightly greater than fifty centimeters.
Rock salt: history
Since ancient times, people are aware of how pleasant salt seasoning food.Many nations used it in folk customs, in order to express loyalty to the traditions of hospitality.
Salt mining was carried out in the mines.For example, already in the Bronze Age salt mined in deposits near the Austrian city of Salzburg, which were readily available.Strabo, a geographer from Greece, inform the salt deposits.Dioscorides, a physician from ancient Rome, describes how salt is extracted from seawater.The name of the mineral "halite" comes from the Greek word hais (salt).The first German and Austrian cities that have been associated with the extraction of salt were Lüneburg (956) and Hallein (1177).Due to the huge amount of salt trade of salt sources in Germany it was very advanced.
Application
should be noted that salt is an extremely important and indispensable supplement.
More than fifty percent of the salt used in the chemical industry for the production of caustic soda, soda, hydrochloric acid, and so forth.
In 1976, world production of salt was about 174 million. M.
largest producers of rock salt are such worldgiants such as China, Russia, America and Germany.
magical properties of salt
It would seem that any magical properties can be a normal dietary supplement?However, historically, the salt is of great importance in human life (take an expression such as "salt of the earth").
Galit often used as a universal talisman that should bring his master love, luck and great respect in society.As guardian, halite protects it from wounds of various wiles, evil spirits, expels from the mind of the owner and negative space, serves as a successful career.Preparation of amulets, talismans or amulets using halite - a fairly easy process.It is enough to sew up a crystal of salt in a small piece of cotton cloth and keep with you in your pocket or around your neck.The most important thing that you can not show his talisman to someone and say that you own it.
