Zinc is natural

Zinc is currently found in the earth's crust, at a mean level of about 80(¹) g/ton.
 

As a result of geological and chemical processes, some places have a particularly high content of concentrated zinc. The ore can be extracted from areas when the zinc concentration exceeds 5%. Zinc mining resources are mainly located in North and South America, Australia, Asia and to a lesser extent, in Europe.

(1)"Zinc in the environment", IZA 1997