Explanation

Carbonate minerals with aquifer like structures. Monoclinic system. The crystal is in the form of plate or column; Aggregates appear in granular, fibrous, radial, plate-like, etc. White, light yellow, or dyed deep gray. glass is glossy and transparent. The fracture surface is not flat, Mohs hardness is 2.5-3.5, and density is 2.11-2.14g/cm3. It is easily soluble in water, with alkaline smell, soluble in inorganic acid and blistering violently. It is produced in salt lakes and coexists with thermonatrite, natron, calcium thermonatrite, etc. It is widely used in chemical industry, metallurgy, textile, paper making, petroleum, rubber and other industrial sectors. It is the raw mineral material for producing caustic soda and soda ash, and the main auxiliary raw material for extracting Al2O3.

Classification