Madal Bal fragments Himalayan Salt Salt 1 kilo. Salt and pure natural crystal has been exposed to enormous pressure over millions of years, and the higher this pressure has been more complete the crystal structure that has been generated. Rock crystal has a geometry and a perfect organic composition, however, the stone (gem) no-its elements are thicker because they have not received enough pressure to consolidate a crystalline structure. The salt crystal salt mines travels in arteries transparent white, pink or bright pinko (veins), and has resulted in areas where due to pressure have been able to form crystalline structures. The elements contained in the salt crystal are formed by small particles that human cells can absorb and metabolize. The salt crystal in its perfect form is also called Halit geometrically, and formerly was known as the salt of kings because it was reserved only for aristocrats. Today, not profitable exploitation of the salt crystal, because despite its natural purity, is only sporadically and in small veins (veins), a phenomenon which hinders its industrial exploitation and occasionally developed by each 100 pieces of rock salt can be achieved only part of crystal salt.