Metallic zinc was produced in the 1400s in India by melting calamine with wool. Zinc was then rediscovered in 1746 by Andreas Sigismund Marggraf, who isolated the element by melting calamine with charcoal.
Zinc can be found on the periodic table by its atomic number, 30, and its atomic weight of 65.38. Zinc is used to make brass, which in turn is used to make items such as screws and musical instruments. It helps these items resist corrosion. Zinc oxide is a common zinc compound. It is used in paints, plastics and printing inks. Another zinc compound, zinc sulfide, glows when exposed to ultraviolet lights and X-rays.