About 90% of our colored titanium jewelry is anodized right here at the shop. How does anodizing create so many brilliant colors? Best Technology does an excellent job of explaining the science behing it... The anodizing process creates an "oxide layer on the surface of titanium to produce an 'illusion of color.' The titanium oxide layer gives the perception of color due to an interference phenomenon, similar to a prism. Light reflects from both the oxide layer and the underlying titanium at different angles and those reflections interfere with each other. Certain wavelengths of light cancel each other out or combine, so that the remaining light is perceived as color. Unlike aluminum anodizing, no dyes are required to produce the color perception, thus adding to the biomedical safety of the finished part."
