I am here with green gold inquires after a few months interim. My questions last time revolved around 18K green gold specifically however here I am talking about green golds in general. How strong a green colour must an alloy have to be a “green” gold? Is it 14K alloys or 18K alloys which are greener? What % of copper is necessary to get a decently hard alloy and could you still consider the decently hard alloy a “green” gold?
Here are two recipes I have encountered for green golds:
18K with 75% Gold, 20% silver, 5% copper, how would this alloy fair in terms of hardness (too soft etc) and greeness (or yellowness)?
14K with 58.5% Gold, 35% Silver 6.5% copper, how would this alloy fair in terms of hardness (too soft etc) and how green (or yellow) the colour would be?
Additionally, because cadmium is toxic and therefore out of the question, how does zinc affect colour and hardness? Does it make the alloy noticeably softer or harder, or noticeably greener or yellower?
I am very interested in hearing any input,