@Litos - What do you think of this one?hhmmmm, my personal thoughts
Blue Anodized Polished Juliet - Ichiro Style | Oakley Forum
From the link/post above, quoting myself so you are not bothered reading the entire post: "...this is not a coating, but a transformation of the surface... ...the better the raw materials, the better the product would be. ...it is worth stating as the anodizing process will generally enhance or 'amplify' the characteristics of the piece - for better or worse."
One possible translation: If you like shinny things in the end you need to start with something shinny in the beginning [when anodizing].
I also found paragraphs 2, 3, 4, and 5 of the following post to be helpful in understanding:
Anodizing X-Metals by XMC optics | Oakley Forum