[BenchTube] Making Citrine Ring

Now showing at the BenchTube (beta)
(Ganoksin answer to YouTube for jewelers.):

Making Citrine Ring
Runtime: 7m 33s

How is made a beautiful ring with an octogon Citrine , using the
hollow technique. Hand made.

Watch Video:

http://www.ganoksin.com/benchtube/video/75/Citrine-Ring 

I just watched parts 1 and 2 of this very interesting video, and I
have a question… Can you or anyone tell me what sort of dark
polishing wheel he is using on his motor shaft? And what is the green
compound he is using to apply to the wheel?

Thanks,
Larry Heyda