To dream of working with or seeing zinc indicates that your business will go through a process of renewal and become a better enterprise.
To taste zinc may mean you are in need of food suppliment tablets to correct an existing health problem or even smelly feet.
Dreams of a metal detector either symbolize that you are looking for treasure or looking for fault. You may be feeling cynical as you look for a hidden agenda and/or feeling on the defensive, wanting to see with the X-ray eyes. Perhaps you are testing your metal to detect how solid you really are.... metal detector dream meaning