Electrum

From DwarfFortressWiki

Electrum

╪ Ω Ω Ω Ω Ω ╪ ≡ ≡ = = ≡ ≡ Ω ≡ ≡ ≡ = ≡ ≡ Ω ≡ ≡ = = ≡ ≡ Ω ≡ ≡ ≡ = ≡ ≡ Ω ╪ Ω Ω Ω Ω Ω ╪
Uses
Metal crafting Construction
Recipe
1 Gold bar 1 Silver bar - or - 1 Gold nugget 1 Silver ore
Properties
Material value 20
Wikipedia article

Electrum bars can be made at a smelter by a dwarf with the furnace operating labor activated.

One gold bar and one silver bar, or one gold nugget and one silver ore (but not a mix of bars and ore), produces two electrum bars. Smelting bars together gains you no net value, as you use a value 30 and value 10 material to produce two units of value 20, but smelting the ore direct to two bars saves you a unit of fuel if you don't have access to magma.