White Gold Casting & Melting: A Guide for Indian Jewelers

Question
Sir,
I am writing this letter from India and we have gold business for ages as our family business.my father n grandfather used to make jewellery (hand made).But we dealt with yellow gold only yet.Now we are trying to make some white gold ornaments.But as far we are unable to melt it with the gold.Can u juz advice me how can we make white gold.I sthere any flux to add when we melt?
hope u will drop a line
faithfully
shyam

Answer
while I have never done this... I am sure it is just a different
usage such as the alloys you are already using such as copper.
I am guessing that platinum would be one of the hours for white gold...
I say just that you Google your question and that would be very many
if I I can tell you exactly what to do... sorry I could not help you more...
regards Rolfe