Do all scales eventually darken?

[doggyknife]

I know that wood and micarta scales darken with time, exposure and usage. And I would assume the same in regards to stag and bone. What about colored FRN, G10 or carbon fiber? How about mineral scales (e.g., turquoise stones)?
Thanks in advance.

 

[Esav Benyamin]

Basically, anything that will corrode, oxydize, get dirty, soak up grease, or degrade, will darken over time. But G-10 and FRN should be almost impervious to this. I don't know anything about carbon fiber. Stone can darken.

Remember, a lot of the materials that darken can also be cleaned.

 

[Qew71]

white micarta darkens to a wonderful colour reminiscent of ivory. I rather like handles that show some sign of seasoning... gives a knife some character.

 

[Brian Jones]

Plain old Windex and a soft cloth work great to clean micarta handles -- just spray it on the handles, and rub down with a cloth. Paper towels tend to leave a lot of lint and pieces on textured micarta, though. This also works well on G-10 handles, too.