Mass supply of standard orange salt requires accurate measurement of sodium chloride purity index above 97% and uniform concentration of natural iron oxides, which gives dark peachy orange color without chalky turbidity. Depending on the consumer industry, the correct choice of load requires determining the granulation size between lump rock salt, fishing grains, sugar or powdered mesh, as well as verifying the moisture content of less than half percent at the origin of loading. With the mechanical sorting of rock salt from reference mines, Kharis Trading has made it possible to place direct bulk and bag orders by guaranteeing the homogeneity of crystalline texture and color stability for the food, cosmetic and halotherapy industries.
Evaluation criteria for the appearance quality and physical purity of orange salt
Distinguishing high-quality orange salt from low-quality samples in major supply lines begins with checking the visual purity of the stone. In our field experiences from Semnan and Garmsar mines, the most important distinguishing feature of the export load is the depth of transparency of the crystals and the concentration of their natural color. Orange salt is the result of natural bonding of iron veins with dense halite crystals over millions of years. If the orange color of the product has a dull, chalky or grayish state, it indicates the presence of heavy impurities such as clay, sulfates or low-quality gypsum layers, which greatly reduces the consumer and commercial value of the product.
The uniformity of the tone of the crystals in high volume is of vital importance. In storage warehouses, discharges that have a strong color contrast between white, brown, and dark black spots indicate the absence of a segregation system and hand-sorting of rock at the entrance of the crusher. After extraction, high-quality crystals in Kharis Trading go through a layered screening process so that blood orange, peach and orange streaks are sent to the processing line without mixing with mineral waste tissues.
The amount of moisture absorption and the consistency of other particles is a decisive visual factor. Original orange salt, even in finely ground samples, has sharp, crystalline fractures with light reflection. If the seeds are seen as hard and compact masses with opaque dust, the absorption of environmental moisture has occurred during the crushing or improper storage stage, which blocks the evacuation of bunkers and silos in the final consumption phase.
What factor causes the orange color in this type of rock salt?
