Jill Hari wrote:
> Hi David,
> Is it possible to etch electrum and get any useful information? Would it almost always be solid solution... would that depend on the ratio of gold to silver?
> Do you know of any articles/results or photomicrographs or anyone who specializes in studying electrum? I'm doing some research on some Lydian electrum coins in the Harvard collection.
Off the top of my head: The Ag-Au system is a complete solid solution
with little or no alloy segregation. It would still have a
solidification structure or worked structure which can be brought out
by etching. I would try a 1:1 nitric acid etchant before trying
something more exotic.