Rose gold

From DwarfFortressWiki

Rose Gold

╪ Ω Ω Ω Ω Ω ╪ ≡ ≡ = = ≡ ≡ Ω ≡ ≡ ≡ = ≡ ≡ Ω ≡ ≡ = = ≡ ≡ Ω ≡ ≡ ≡ = ≡ ≡ Ω ╪ Ω Ω Ω Ω Ω ╪
Uses
Metal crafting Construction
Recipe
3 gold bars 1 copper bar
Properties
Material value 23
Wikipedia article

Rose gold is an alloy of gold and copper, made at a smelter. It is made by combining three gold bars with one copper bar, which results in four rose gold bars. The value of this is a little subjective, as the total material worth of the produced metal is the same as that of the ingredients (3*30 and 1*2 -> 4*23). Disregarding fuel, you lose the possible utility of the copper bar to get purple-coloured building material. If you have no magma access then the transition will cost you fuel as well, so it's really a question of how important it is that you get purple metal.