[Chemical composition] Na 39.4%, Cl 60.6%. Often contains brine, air bubbles, mud and organic wraps. Gypsum , KCl, MgCl 2, etc. are sometimes wrapped.
[Form] Isometric crystal system. It is often in the form of a cube, and a funnel-like step depression is common on the crystal face. The aggregate is in the form of a dense block, a granular shape, a plate shape, and the like.
[Physical properties] colorless or white, but often due to impurities and gray (argillaceous dots), yellow (hydrogen-containing iron oxide), red (anhydrous containing less water iron oxide), brown and black ( Contains organic matter, etc. The blue stone salt is due to the free sodium ions in the structure. Glass luster, greased after weathering. Hardness 2-2.5. Crisp. Cube cleavage is complete. The proportion is 2.1-2.2. soluble in water. It has a salty taste. The burning flame is yellow (the reaction of Na).
[Formation and production] Stone salts are mainly formed with exogenous deposits, and their occurrences are as follows:
(1) Coastal lagoon sedimentation - sea salt.
(2) Inland lake sediments - pool salt or lake salt.
(3) Dissolve and infiltrate into brine - well salt.
(4) Rock salt formed by the ancient continental climate.
[Identification characteristics] It is characterized by small hardness, easy dissolution, salty taste, and cube cleavage. The flame is yellow when burning.YHZD/S mobile Concrete Batching Plant is with the functions of collecting, accurate weighing, even mixing and quick transportation. And it`s easy to operate and move, which suitable for road, bridge, port, water and electricity construction. They are popularly used for the high speed road construction which go with the building work.And there are many customers which start to use it for dry ready mix and supply for the high building project.As one of the biggest concrete batching plant manufacturers in china,Dika has exported their mixing plant to 110 countries and there are many office and spare parts abroad for the better service for all the customers.
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