Borax - Industrially used chemical which is an anhydrous form of sodium borate (Na2B4O7) used in the manufacture of glass and ceramics. It is interesting to note that there is a mineral Borax (Na2B4O7 · 10H2O), and it is different than the borax chemical, for it contains water. The mineral Borax is an ore of the chemical borax. See also Kernite.

(For information on the industrial uses of borax, see
"uses" of the mineral Borax)