I don't even try making stock out of old white gold. Most of the
time you get cracks. In fact, I usually don't even try making
white gold stock out of new casting grain.
Whenever the subject of white gold and the horrors inherent, I
recommend David Fell’s Winter White alloy. First mentioned by Andy
Cooperman, I have used this alloy for over 5 years and it is easy to
cast or fabricate with. I do not have problems with cracking when
rolling and the cast metal is malleable.
Sometimes I am pleasantly surprised when I anticipate having a
problem, and everything goes smoothly. I recently poured a wire
ingot, rolled out bezel for a customers triplet opal, and had someone
less experienced doing gold work than I am fabricate the bezel. The
bail was fabricated as well. The piece came together easily, the opal
was set without incident.
I seem to be of the opinion that if you try it you will like it, more
than any other white gold, and it does not have to be rhodium plated.
Do not think about mixing it with scrap white gold. You will end up
Richard Hart G.G.