Making Modern Electrum, an Experiment by Lynn Cobb

PMC Gold spinning element

Since gold clay is so expensive, might there be a way to combine it with silver clay and still have a finished metal that appeared gold in color, but would be less pure than PMC Gold clay and therefore, a little less expensive?

The ancient Greeks and Romans were aware of such an alloy, which occurred both naturally and man made. They called it “electrum” and used it for coins, jewelry and plating. My reading led me to discover that an alloy of more than about one third silver would result in a metal that appeared silver, that is, no gold color at all. Ancient alloys seemed to be no less than about 20% silver. Therefore, my plan was to combine a variety of gold and silver PMC mixes so that the alloys were in that sweet spot of 20-30% silver, to see what shades of gold would result. Continue reading…