I have lurked the site for a while now but after all this time I have decided to write my first post. I alloy everything I make and so far that has limited to sterling silver. However as I come to work in Gold I realize the recipe options are a lot more complicated than silver. I need recipes for pleasing shades of both 14K and 18K Yellow Golds using the Au, Ag, Cu system (no Zinc!!) Thank you to anyone able to answer my question.