Blogger-Chemist Nigel Brown Creates Ring from Purple Gold

Blogger-chemist Nigel Brown has created a ring made of purple gold - a rare alloy with aluminum. No one makes solid jewelry out of purple gold because the process is too complicated: the proportions of different alloys must be very precise. Brown spent dozens of attempts to achieve the purple color. He lost several grams of gold in the process, but in the end, he managed to make a ring of the desired color.