Rock Salt

Halite commonly known as rock salt, is a type of salt, the mineral (natural) form of sodium chloride (NaCL). Halite forms isometric crystals. The mineral is typically colourless or white, but also has variations in light blue, dark blue, purple, pink, red, orange, yellow or grey. It commonly occurs with other evaporite deposit minerals such as several of the sulfates, halides, and borates.