Here's a photo so anyone can see the problem.
http://www.ganoksin.com/ftp/bb.jpg I wonder if throwing it in a
tumbler with steel shot would take the black stuff off but still
preserve (or enhance) the polish? Another piece of equipment I've
been meaning to buy...
I boil work in water with SOAP, not detergent (detergent can leave a
film on diamonds) In a small dish, I use enammell one, dissolve hand
soap in hot water untill it is cloudy, boil and then add about half
a teaspoon of ammonia, clean work with a tooth brush, scrubbing and
using a jabbing action from all angles. I always have a pot of this
and clean just about every thing thats safe to go in hot water and
ammonia. You need to use it hot to help soften polish.
It sets when cold because there is so much saop in solution.
You will have to add ammonia each time you use it because it
This is an old recipe always works really well.
Ammonia degreases, is a STRONG alkali, opposite to acid, can be
equally dangerous especially industrial stuff. I use household
ammonia, not half as strong, in a well ventilated room. Always use
hand cream afterwards.