Sodium is a chemical element with the symbol Na and atomic number 11. It is a soft, silvery-white metal that is highly reactive and flammable. Sodium is the sixth most abundant element in the Earth's crust and the most abundant alkali metal.

Chlorite is a mineral that belongs to the chlorite group of minerals. It is a hydrated magnesium iron aluminium silicate with the chemical formula (Mg,Fe)5Al2(AlSi3O10)(OH)8. Chlorite is a common mineral in metamorphic rocks and is also found in some igneous and sedimentary rocks.