Gradivus

Firsr time post...i stumbled on to this forum and because i'm intested in traditional blacksmithing thouht it would be a good idea to learn about safty issues. I would like to thank everyone who has made a post. I've learned a lot and will just completly stay away from the galv and zinc. However, one thing that popped into my head while reading was, how can you tell if metal is galvanized or not. If someone could give me an idea of this i would be very greatful.