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. (Josiah Gregg)

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.

Josiah Gregg

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alloy amalgamation averaging bottom cent compound considerable furnace gold gravity intermixture liquid main name per portion separating silver specific state take ten thirty washing while worth yet

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