Black gold is a alloy whose surface turns black from oxidation. itis available from Argen it is only a casting alloy as it is quitebrittle and must be cast in a completely controlled environment thatis totally free of oxygen. So you need one of those $50,000 castingmachines to work with it.
I believe black gold is achieved by alloying with iron. The problemwith it is that it is very hard and brittle, as well as difficult toalloy in the first place.
Spike CorneliusPortland, Or.RC ArtMetal