Preferred term

zinc

Is replaced by

[GEMET] A brittle bluish-white metallic element that becomes coated with a corrosion-resistant layer in moist air and occurs chiefly in sphalerite and smithsonite. It is a constituent of several alloys, especially brass and nickel-silver, and is used in die-casting, galvanizing metals, and in battery electrodes.

http://vocabs.lter-europe.net/EnvThes/USLterCV_640