Zinc is one of the precious metals that we offer.  

In a broad way, It is used to protect other metals such as iron or steel and to extend their life. This process is also known as “electro galvanizing”. Zinc is the fourth most used metal, coming directly below iron, copper, and aluminium. 

What you are buying here is a commodity which is Zinc versus the US Dollars (XZNUSD) 

E.g. 1 Lot is equal to 100 0z of Zinc 

I would suggest if you try it on your demo account first to get a sense of how to trade zinc.