The silver which is taken from the furnace, generally contains an intermixture of gold, averaging from ten to thirty per cent.; but what is extracted by amalgamation is mostly separated in the washing. While in a liquid state, the gold, from its greater specific gravity, mostly settles to the bottom: yet it usually retains a considerable alloy of silver. The compound is distinguished by the name of oroche. The main portion of the silver generally retains too little gold to make it worth separating.