2 x 1.5 x 1.7 cm. A piece of a cube, however, salt crystallizes in a cubic system. Pretty translucent and colorless. Rock salt has positive effects on the respiratory system - it is particularly beneficial for asthmatics and allergy sufferers, and also has a beneficial effect on colds and bronchitis. Halite has a positive effect on a person's mood and condition - it relieves him of weakness, nausea, and mental rigidity. It is a source of vitality, optimism. It relaxes muscles, improves skin, nails and hair.