I would like to get some information on electrum because there doesn’t seem to be much out there. I know it is just gold and silver so it should be very soft, probably only a bit harder than fine silver. What could you make from an alloy this soft? Typically electrum alloys try to mimic the states gold is naturally found in. That is it would be .500 fine, .600 fine, .700 fine or .800 fine, so hallmakring would be a problem, I am guessing hallmark it to the lowest available karat? That is mark the .500 fine alloy as 10K, the .600 fine alloy as 14K etc, or just don’t hallmark it at all (and call it a gold alloy with 60% gold)
Also how is the colour of various alloys versions, I am guessing the .500 fine version would a whitish green, the .600 and .700 fine alloys a stronger green and the .800 alloy a lemon yellow?