Cold forged anodized niobium

It requires the jeweler to have very specialized tools if they want to go further than cold connections in their design work. ... Anodized niobium is safe for ...

Niobium Jewelry-Making Supplies | rings-things.com

Niobium jewelry findings come in several anodized colors. Anodized metal is colored by dipping it into an electrically charged "bath" that creates bright colors ...