Yes, well, Scythian gold 'tarnishes', often with a
fine reddish
cast (the big 6th-century pieces). But I've never seen an
electrum coin tarnished like silver. I suspect that the native
alloy is pretty stable and contains just enough silver to make the gold pale but enough gold not to tarnish significantly. Lovely stuff. Not that I've handled any of them! It is one desideratum that I find difficult to fulfill.
Pat L.
