The Silver we use at Hawaii Jewel is called Argentium Silver. It is more pure than Sterling Silver and is recycled. It does not have any Copper or Nickle in it like Sterling does. It takes way longer before it reacts to air, so it hardly needs polishing! This is great news especially for Jewelry fans in Hawaii, where our humid, salty air seems to be the durability test! Click here to see pieces made in this Wonderful Argentium Silver Wave Collection and Argentium Silver Spiral Collection.