Aluminum has trace amounts of other alloys and elements, such as (zinc, magnesium, and silicon) present in the alloy. These other elements do not respond the same as the aluminum does during anodizing ...

Anodizing is an electrochemical process some jewelers use to change the color of metals such as titanium, aluminum, and niobium. Dipping a reactive metal into a "bath" mixture of low-sudsing detergent ...