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.


Commerce of the Prairies (1831–1839), Chapter 22 - Visit to Town of Jesus-Maria — Anti-Masonic Auto de Fe

Josiah Gregg Quotes

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 ...

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 ...

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 ...

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 ...