I went to a mineralogy show for college, and saw some "rainbow quartz" which is quartz anodized with a titanium oxide coating. It produces a highly reflective array of "interference" colors, think bright purple, gold, blue and dark reflective black.
No dye involved, it's entirely caused by the cystalline rearrangement layer which is so thin that it "constructively" and "destructively" affects different wavelengths passing through it.

Apparently you can anodize titanium and produce very uniform and predictable colors, and they change lighting properties subtly from different angles. Someone should definitely anodize their titanium frame blue
I don't know if you'd have to block off the bb and headset though, apparently the titanium oxide layer grows both into the metal and out of it but it's on the scale of microns.

https://www.webamuse.co.jp/new/produc...ilent_gold.jpg

That would look really cool. If I could afford a ti frame, I would do that.

I would be all over that if I had just a little more money and enough "brownie points" with the wife to go for it.

Ride Safe!

I found a website of a guy that does it. He can do some crazy stuff and it can get really expensive. https://www.titaniumarts.com/content/...anodizing.html

you can definitely get anodized Ti spokes


and this guy will anodize your Ti frame for ya... and he's done some awesome work!
https://www.titaniumarts.com/content/...anodizing.html



Edit: haha we just posted the same thing :-P

i'm the 3rd owner of this frame, but i believe it was done by titanium arts (btw...leni fried is a woman). colors are fairly subtle, logos are ano as well. very cool in person...sort of iridescent / color-shifting.

wow, your bike looks awesome.