Rock salt is made of a 1:1 ratio of sodium to chlorine. Rock salt's chemical formula is NaCl, which means that one molecule of rock salt is composed of one atom of sodium (Na) and one atom of chlorine (Cl). More »

Rock salt melts ice by lowering the freezing point of the water. As the salt dissolves into the ice, it forms a solution with a much lower freezing point than pure water has. This causes the ice to melt unless the temper... More »

Eating a small amount of rock salt may cause redness around the mouth, rash or drooling, but it usually doesn't cause any serious problems, according to National Capital Poison Center. Consuming a large amount of rock sa... More »

Table salt is an ionic compound composed of the elements sodium and chlorine, in equal proportions. The chemical symbol for this compound is NaCl, and it is an essential nutrient for human beings and many other animals. More »

Halite is the mineral name for salt, or sodium chloride; it's referred to as rock salt when in rock form. Halite is typically either white or clear in color, but it can have a range of different colors including blue, vi... More »

Sedimentary rocks are characterised by their formation from the deposition and lithification of rock material. They may be formed through physical and chemical processes, such as mechanical weathering, compaction and dis... More »

Bauxite ore is formed when the surrounding soil or rock is dissolved by natural weathering processes until it forms a new type of rock that is usually rich in aluminum ore. Though both types are used for aluminum product... More »