Abstract
Salt minerals of various deposits belong to the sedimentary rocks class. They were formed with the long evaporation of seawater in different geological epochs and therefore consist, as a rule, of salt minerals belonging to chlorides and sulphide of alkali and alkaline-earth metals. Forexample, the Starobinsky deposit is characterized by halogen compounds, and Kalushsky and Stebnikovskoye ones by sulfate salts. In addition, inBerezniki deposit and in other Russian deposits there are mixed rocks, including various potassium compounds. Taking into account the peculiarities of potash deposits caused by their easy solubility, acomprehensive solution for their development, containing both the conditions for conducting mining operations and the conditions for theenrichment of potassium-bearing ores, will be relevant.
Highlights
The main chloride minerals found in the above deposits are: halite, silvin, sylvinite and carnalite, and cainite, including magnesium sulfate.Galite is a mineral of chlorides subclass, a crystalline form of sodium chloride (NaCl)
Taking into account the peculiarities of potash deposits caused by their easy solubility, a comprehensive solution for their development, containing both the conditions for conducting mining operations and the conditions for the enrichment of potassium-bearing ores, will be relevant
Cainite is a special mineral of the sulfate class containing potassium chloride and magnesium sulfate, of the composition KMg (SO4) Cl 3H2O
Summary
The main chloride minerals found in the above deposits are: halite, silvin, sylvinite and carnalite, and cainite, including magnesium sulfate. Silvin is a mineral from the class of halides, the chemical composition of KCl; contains 52.48% K, as well as impurities Br, less often I. Incorporated gas bubbles (N2, CO2, CH4, He, etc.) impart a milky white color to transparent and colorless sylvite crystals It contains halite (NaCI) and iron oxide Fe2O3 in the form of impurities which gives the mineral a red color. The ratio between potassium chloride and sodium in sylvite is not constant It usually contains a little sand, clay, gypsum, etc. Cainite is a special mineral of the sulfate class containing potassium chloride and magnesium sulfate, of the composition KMg (SO4) Cl 3H2O. It is a light grainy mass [1]. The reserves of potassium-bearing minerals in the earth's crust are not unlimited, the requirements for an integrated approach are an urgent task and have an important strategic importance, this concerns ore mining, enrichment, further processing, and transportation and use
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